| dbp:desc
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- 0001-06-18 (xsd:gMonthDay)
- 0001-07-09 (xsd:gMonthDay)
- 0001-07-12 (xsd:gMonthDay)
- 0001-07-18 (xsd:gMonthDay)
- 0001-07-19 (xsd:gMonthDay)
- 0001-07-30 (xsd:gMonthDay)
- 0001-08-01 (xsd:gMonthDay)
- 0001-08-11 (xsd:gMonthDay)
- 0001-10-24 (xsd:gMonthDay)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The sailing vessel was sunk in the Strait of Sicily by . (en)
- The naval trawler was lost on this date. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west by west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The schooner was sunk in the Atlantic Ocean off the coast of Portugal by . (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea by . (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sicily by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Bishop Rock, Isles of Scilly by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west by west of the Fastnet Rock by with the loss of two of her crew. (en)
- The motor launch was lost in the Mediterranean Sea on this date. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west north west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by with the loss of a crew member. (en)
- World War I: The sailing vessel was sunk in the Gulf of Genoa by . (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean by . (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea south of Sardinia by . (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean west of Ouessant by . (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean north west of the Butt of Lewis, United Kingdom by with the loss of a crew member. (en)
- World War I: The three-masted schooner was torpedoed and sunk in the Atlantic Ocean west of the Hebrides, United Kingdom by . (en)
- World War I: The cargo ship was shelled and sunk in the Atlantic Ocean south south west of the Bishop Rock, Isles of Scilly by . Her crew survived. (en)
- World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean north west by west of the Fastnet Rock by with the loss of two crew. Her captain was taken as a prisoner of war. (en)
- World War I: The coaster was sunk in the English Channel west north west of Portland Bill, Dorset, United Kingdom by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Bay of Biscay west of Sables d'Olonne, Vendée, France by . (en)
- World War I: The schooner was shelled and sunk in the Atlantic Ocean off Cape Roca by . (en)
- World War I: The submarine was shelled and sunk in the English Channel in a gun battle with the tanker . (en)
- World War I: The minesweeping boat struck a mine and sank in the Baltic Sea off Rauma, Finland. (en)
- World War I: The fishing vessel was shelled and sunk in the Atlantic Ocean west of the Shetland Islands (en)
- World War I: The cargo ship was torpedoed and sunk in the Gulf of Patras north west of Cape Pappas, Greece by . Her crew survived. (en)
- World War I: The Type UC I submarine was last reported in the North Sea on this date. Believed to have subsequently struck a mine and sank in the North Sea north of Zeebrugge, West Flanders, Belgium with the loss of all eighteen crew. (en)
- World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean south west of the Bull Rock by . Her crew survived. (en)
- World War I: The passenger ship was torpedoed and sunk in the English Channel south west of Portland Bill by with the loss of fifteen lives. (en)
- World War I: The sailing vessel was scuttled in the North Sea off the Nieuwe Waterweg by . She was later salvaged, repaired and returned to service. (en)
- World War I: The vessel was sunk in the Baltic Sea off Mäntyluoto by . (en)
- World War I: The fishing vessel was sunk in the North Sea west north west of IJmuiden, North Holland by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel north west of the Triagoz Lighthouse, Finistère, France by with the loss of sixteen crew. (en)
- World War I: The coaster was scuttled in the Atlantic Ocean by . All on board survived. (en)
- World War I: The cargo ship was sunk in the North Sea east of Lerwick, Shetland Islands by . Her crew survived. (en)
- World War I: The was torpedoed and sunk in the English Channel off Beachy Head, Sussex by with the loss of 38 of her crew. (en)
- The cargo ship ran aground at Point Arena, California and was a total loss. (en)
- World War I: The cargo ship was torpedoed and damaged in the English Channel south of the Owers Lightship by . She was beached but was later refloated. (en)
- World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cap de l'Aiguille by . (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel west of Portland Bill by with the loss of two of her crew. (en)
- The naval trawler was lost in the Atlantic Ocean on this date. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean off A Coruña, Spain by . (en)
- World War I: The cargo ship was scuttled in the Atlantic Ocean ) by . Her crew survived. (en)
- The collier collided with Leander and sank in the Irish Sea off the South Bishop Lighthouse. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by south of Ouessant, Finistère, France by with the loss of six crew. (en)
- World War I: The trawler was scuttled in the Atlantic Ocean south by west of Suðuroy, Faroe Islands by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the Atlantic Ocean north west of the Fastnet Rock by with the loss of two crew. (en)
- World War I: The fishing smack struck a mine and sank in the North Sea north of the Haisbro Lightship with the loss of five of her crew. (en)
- World War I: The drifter was shelled and sunk in the North Sea off Sumburgh Head, Shetland Islands by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The barque was sunk in the Atlantic Ocean north west of Ireland by with the loss of all 23 crew. (en)
- World War I: The three-masted schooner was sunk in the Atlantic Ocean west of the Shetland Islands, United Kingdom by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean west of Gibraltar by . Her crew survived. (en)
- World War I: The coaster was torpedoed and sunk in the English Channel east by south of The Lizard, Cornwall by with the loss of eleven of her crew. (en)
- World War I: The naval trawler struck a mine and sank in Auskerry Sound with the loss of four of her crew. (en)
- World War I: The full-rigged ship struck a mine and sank in the Bay of Biscay off La Rochelle, Loire-Inférieure with the loss of seven of her crew. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean south east by south of Santa Maria Island, Azores, Portugal by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north north west of Tory Island, County Donegal by . Her crew survived. (en)
- The tug sank in the Housatonic River at Derby, Connecticut. (en)
- World War I: The cargo ship was damaged by shelling in the North Sea off Whitby, Yorkshire, United Kingdom by . She was beached, but attacked again from the u-boat, this time with a torpedo. Broke in half and was a total loss. (en)
- World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay off Belle Île, Morbihan, France (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean south west of Ireland by and . Her crew survived. (en)
- World War I: The barque was scuttled in the North Sea by . Her crew survived. (en)
- World War I: The barque was scuttled in the Atlantic Ocean off the Île de Sein, Finistère by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Galley Head, County Cork by with the loss of two of her crew. (en)
- World War I: The auxiliary schooner was shelled and sunk in the North Sea off Utsira, Rogaland, Norway by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea east of Fair Isle by with the loss of two crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea north east of Bône, Algeria by with the loss of 26 crew. (en)
- World War I: The four-masted barque was scuttled in the Atlantic Ocean north west of Inishtrahull Island, County Donegal, United Kingdom by with the loss of a crew member. (en)
- World War I: The trawler was shelled and sunk in the North Sea off IJmuiden, North Holland by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and damaged in the English Channel south east of The Lizard, Cornwall by . She was taken under tow but sank at ). Her crew survived. (en)
- World War I: The refrigerated cargo liner was torpedoed and sunk in the Atlantic Ocean west by south of Ouessant, Finistère, France by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of the Fastnet Rock by with the loss of two crew. (en)
- World War I: The schooner was sunk in the Atlantic Ocean off Villa do Conde, Norte by . (en)
- World War I: The cargo ship struck a mine and sank in the Indian Ocean west of Bombay, India with the loss of nine of her crew. (en)
- World War I: The coaster was sunk in the Atlantic Ocean off Cape Sisargos, Spain by . Her crew survived. (en)
- World War I: The fishing vessel was sunk in the North Sea off Zandvoort by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean south of Galley Head, County Cork, United Kingdom by . (en)
- World War I: The struck a mine and sank in the Mediterranean Sea off Malta with the loss of ten of her 77 crew. (en)
- World War I: The barquentine was shelled and sunk in the English Channel south east of Start Point, Devon by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and damaged in the North Sea whilst in convoy off the Orkney Islands, United Kingdom by . She was subsequently taken in tow but foundered east of Auskerry. (en)
- World War I: The tanker was torpedoed and sunk in the English Channel south east of Start Point, Devon, United Kingdom by with the loss of 24 of her crew. (en)
- World War I: The fishing vessel was shelled and sunk in the North Sea by . Her crew survived. (en)
- World War I: The coaster was torpedoed and sunk in the Barents Sea west of Holmengrå, Finnmark by with the loss of two crew. (en)
- World War I: The three-masted barque was shelled and sunk in the North Sea by . Her crew survived. (en)
- The collier collided with Europa and sank in the Atlantic Ocean south west of Cape Spartel, Morocco with the loss of six of her crew. (en)
- World War I: The three-masted schooner was scuttled in the English Channel south by east of Hastings, Sussex by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The fishing vessel was shelled and sunk in the North Sea north of the Shetland Islands, United Kingdom by . Her crew survived. (en)
- World War I: The barque was scuttled in the Mediterranean Sea south of Sardinia by . (en)
- World War I: The barque was scuttled in the Atlantic Ocean west north west of Ouessant by . Her crew survived. (en)
- World War I: The barque was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by with the loss of all hands. (en)
- World War I: The cargo ship struck a mine and sank in the English Channel east by south of The Lizard with the loss of a crew member. (en)
- World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea south of the Cabo de Gata, Spain by with the loss of a crew member. Two crew were taken as prisoners of war. (en)
- World War I: The barque was sunk in the Mediterranean Sea south east of the Balearic Islands, Spain by . (en)
- World War I: The drifter was shelled and sunk in the North Sea off Sumburgh Head by . Her crew survived. (en)
- The cargo ship collided with a trawler and sank in the Baltic Sea off Landsort, Sweden. (en)
- World War I: The sailing vessel was sunk in the Atlantic Ocean west of the Hebrides, Scotland by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west by west of the Bishop Rock, Isles of Scilly by with the loss of a crew member. (en)
- World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea north north west of Cape Serrat, Tunisia by with the loss of two lives. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean off Cape Prior, Spain by . Her crew survived. (en)
- World War I: The auxiliary schooner was scuttled in the Atlantic Ocean south west of The Lizard, Cornwall, United Kingdom by . Her crew of 20 survived and were picked up by HMS Attack on the same day . (en)
- World War I: The cargo ship was sunk in the Irish Sea south east of the Arklow Lightship by . Her crew survived. (en)
- The cargo ship sank in the Atlantic Ocean . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by with the loss of 28 crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west by west of Ouessant, Finistère, France by . Her crew survived, but three of them were taken as prisoners of war. (en)
- World War I: The auxiliary minesweeper struck a mine and sank in the North Sea north east of the Shipwash Lightship with the loss of 29 of her crew. (en)
- World War I: The cargo ship was scuttled in the Atlantic Ocean west of Ouessant, Finistère by . Her crew survived. (en)
- World War I: The naval trawler struck a mine and sank in the Irish Sea south of Dunmore Point, County Waterford with the loss of eleven of her crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of Eagle Island, County Mayo by with the loss of a crew member. (en)
- World War I: The naval trawler was shelled and sunk in the Atlantic Ocean by with the loss of all 25 crew. Her last known position was . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of the Fastnet Rock by with the loss of two of her crew. (en)
- World War I: The cargo ship was torpedoed and sunk with the loss of one life in the North Sea off Sognefjord, Norway by . (en)
- World War I: The auxiliary minesweeper) was torpedoed and sunk in the Aegean Sea south of Icaria, Greece by with the loss of 44 of her crew. Three of the survivors were taken as prisoners of war. (en)
- World War I: The cargo ship was sunk in the North Sea north north east of Muckle Flugga by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Cape Spartel, Morocco by with the loss of a crew member. (en)
- World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by with the loss of nineteen lives. (en)
- World War I: The cargo ship was sunk in the Mediterranean Sea east of Malta by . (en)
- World War I: The cargo ship struck a mine and was damaged in the North Sea off Hartlepool, County Durham. She was beached but was later refloated. (en)
- World War I: The cargo ship was sunk by a U-boat. Twenty six survivors rescued by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea east of Malta by . Her crew survived. (en)
- World War I: The cargo ship struck a mine and sank in the Bay of Biscay off the mouth of the Gironde (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The fishing vessel was sunk in the Atlantic Ocean west of the Shetland Islands by . Her crew survived. (en)
- World War I: The cargo liner was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by with the loss of 29 lives. (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea off Holmengrå, Hordaland, Norway by . Her crew survived. (en)
- World War I: The cargo ship struck a mine and sank in the Mediterranean Sea off Port-la-Nouvelle, Aude, France. Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of Cape Wrath, Sutherland by with the loss of five of her crew. (en)
- World War I: The schooner was scuttled in the Mediterranean Sea north of Denia, Spain by . All six crew survived. (en)
- World War I: The barque was torpedoed and sunk in the Atlantic Ocean north north west of Tory Island by with the loss of thirteen crew. (en)
- World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea off Messina, Sicily, Italy by . All on board survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Fastnet Rock by with the loss of 25 crew. (en)
- World War I: The armed merchant cruiser was torpedoed and sunk in the Atlantic Ocean north of the Butt of Lewis, Outer Hebrides , by the submarine with the loss of ten of her crew. (en)
- World War I: The sailing vessel was sunk in the North Sea east of Girdle Ness, Aberdeenshire, United Kingdom by . (en)
- World War I: The sailing vessel was sunk in the Mediterranean sea north of Cape Corse by . (en)
- World War I: The cargo ship was sunk in the Mediterranean Sea north of Bizerta, Algeria by . Her crew survived. (en)
- World War I: The brigantine was sunk in the Atlantic Ocean west of Penmarc'h, Finistère by . (en)
- World War I: The cargo ship struck a mine and sank in the North Sea east by south of the Withernsea Lighthouse, Yorkshire by with the loss of five of her crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Mine Head, County Cork by with the loss of twenty crew. (en)
- World War I: The schooner was scuttled in the Atlantic Ocean north west of Ireland by . Her crew survived. (en)
- World War I: The cargos ship was sunk in the Atlantic Ocean off Villa do Conde (en)
- The naval trawler was wrecked in the Kenmare River, County Cork. (en)
- World War I: The cargo ship was torpedoed and damaged in the English Channel south south east of The Lizard, Cornwall by with the loss of four of her crew. She was taken in tow but consequently sank. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of Eagle Island by with the loss of seventeen crew. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean west of Scotland by . Her crew survived. (en)
- World War I: The brig was scuttled in the English Channel north west of Dieppe, Seine-Inférieure, France by . Her crew survived. (en)
- World War I: The schooner was shelled and sunk in the Mediterranean Sea off Cape Sigli, Algeria by . (en)
- World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean north west of Tory Island, County Donegal by . She was scuttled the next day with the loss of 40 crew. (en)
- World War I: The fishing vessel was sunk in the North Sea off Zandvoort, North Holland by . Her crew survived. (en)
- World War I: The collier was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of Ouessant, Finistère, France by . Her crew survived. (en)
- World War I: The tanker was torpedoed and sunk in the Atlantic Ocean off the Butt of Lewis by . Her crew survived. (en)
- World War I: The cargo ship struck a mine and sank in the Pacific Ocean south west of Gabo Island, Victoria, Australia. (en)
- World War I: The cargo ship was torpedoed and, sunk in the North Sea off Lerwick, Shetland Islands, United Kingdom by . Her crew survived. (en)
- World War I: The full-rigged ship was scuttled in the Atlantic Ocean west of Ireland ) by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of the Fastnet Rock by with the loss of a crew member. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north of Scotland by with the loss of five of her crew. (en)
- World War I: The barque was scuttled in the Norwegian Sea east of the Faroe Islands by . Her crew survived. (en)
- World War I: The barque was shelled and sunk in the North Sea south east of Hartlepool, County Durham, United Kingdom by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the English Channel west by south of Dungeness, Kent, United Kingdom by . (en)
- World War I: The collier was sunk in the Atlantic Ocean north of Madeira, Portugal by with the loss of all 27 crew. (en)
- World War I: The schooner was captured and sunk in the Mediterranean Sea off Cape Corse, Corsica, France (en)
- World War I: The coaster was scuttled in the Atlantic Ocean west of Ouessant by . Her crew survived. (en)
- World War I: The cargo ship struck a mine and sank in the Atlantic Ocean south of Galley Head, County Cork with the loss of 24 of her crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north of the Stiff Lighthouse, Ouessant, Finistère by . (en)
- World War I: The C-class submarine was sunk off the Shetland Islands by with the loss of eighteen of her nineteen crew. The survivor was rescued by U-52. (en)
- World War I: The trawler was shelled and sunk in the Atlantic Ocean north by west of Brough of Birsay, Orkney Islands by . Her crew survived. (en)
- World War I: The Type UB II submarine was depth charged and severely damaged in the English Channel off The Lizard by . She put into A Coruña, Spain where she was interned. (en)
- World War I: The trawler was shelled and sunk in the Atlantic Ocean north by west of Hoy Head, Shetland Islands by . Her crew survived. (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea between Sardinia and Sicily by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by south of the Fastnet Rock by with the loss of two crew. (en)
- World War I: The collier was torpedoed and sunk in the Atlantic Ocean west by south of the Bishop Rock, Isles of Scilly by with the loss of three of her crew. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of Ouessant by (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean off Inistrahull Island, County Donegal, United Kingdom by with the loss of two of her crew. (en)
- World War I: The sailing vessel was scuttled in the North Sea south by east of the Noord Hinder Lightship by . (en)
- World War I: The floating crane was sunk in the North Sea off the Nieuwe Waterweg, Netherlands by . (en)
- World War I: The schooner was scuttled in the Atlantic Ocean south by east of Santa Maria Island, Azores by . Her crew survived. (en)
- World War I: The sailing vessel was shelled and sunk in the Atlantic Ocean north west by north of Tearaght Island, County Donegal by an Imperial German Navy submarine. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by north of Ouessant, Finistère, France by with the loss of two crew. (en)
- World War I: The coaster was scuttled in the North Sea south of the Noord Hinder Lightship by . (en)
- World War I: The vessel was sunk in the Mediterranean Sea west of Marsala by . (en)
- World War I: The sailing vessel was sunk in the North Sea off the Noord Hinder Lightship by . (en)
- World War I: The naval trawler struck a mine and sank in the Atlantic Ocean north of Cape Espichel with the loss of fourteen of her crew. (en)
- thumb|SM UC-61, December 2018World War I: The Type UC II submarine ran aground at Wissant, Pas-de-Calais, France and was scuttled. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north north east of Cape Wrath, Sutherland by . Her crew survived. (en)
- During a voyage from Japan to San Francisco, California, with a cargo of general merchandise, the 3,478-ton steamer was wrecked on the southeastern end of Amchitka Island in the Aleutian Islands. Her entire crew of 49 survived, abandoning ship in three lifeboats, one of which reached Unalaska on Unalaska Island in the Aleutian Islands. Another lifeboat reached Vancouver Island in British Columbia and the third was picked up at sea by the vessel Santa Ana . (en)
- The naval trawler struck a submerged wreck and sank in the Mediterranean Sea off Alexandria, Egypt. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west south west of Belle Île, Morbihan, France by with the loss of four of her crew. (en)
- World War I: The fishing vessel was sunk in the North Sea west north west of IJmuiden by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the Atlantic Ocean west north west of Tory Island by . Her crew survived, but her captain was taken as a prisoner of war. (en)
- World War I: The cargo ship was scuttled in the Atlantic Ocean north of Ouessant by . Her crew survived. (en)
- World War I: The fishing smack was shelled and sunk in the North Sea by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean east by north of the Île de Batz, Finistère, France by with the loss of 24 of her crew. (en)
- World War I: The passenger ship was sunk in the North Sea north east of Lamba Ness, Shetland Islands, United Kingdom by . All on board survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north by west of the Butt of Lewis by . Her crew survived, but one of them was taken as a prisoner of war. (en)
- World War I: The barque was sunk in the Atlantic Ocean south of St. Kilda, United Kingdom by . Her crew survived. (en)
- World War I: The coaster was shelled and sunk in the Strait of Gibraltar off Cape Roche by . Her crew survived. (en)
- World War I: The cargo ship was scuttled in the Atlantic Ocean south west of Santa Maria Island, Azores, Portugal by . (en)
- World War I: The tug was sunk in the North Sea off the Nieuwe Waterweg by . (en)
- The patrol vessel was wrecked at West Point, Virginia. (en)
- World War I: The collier was torpedoed and sunk in the Atlantic Ocean west of the Isles of Scilly by with the loss of a crew member. (en)
- World War I: The Type UB II submarine was probably rammed and sunk on this date by with the loss of all 22 crew. (en)
- World War I: The cargo ship struck a mine and sank in the Mediterranean Sea. (en)
- World War I: The trawler was shelled and sunk in the North Sea east south east of Sandoy, Faroe Islands by . Her crew survived. (en)
- The Q-ship was lost in the Mediterranean Sea on this date. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west by south of the Bishop Rock, Isles of Scilly by with the loss of a crew member. (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea off Robin Hood's Bay, Yorkshire by with the loss of a crew member. (en)
- World War I: The trawler, operating as a Q-ship, was shelled and sunk in the Atlantic Ocean due west of Lundy Island, Devon by with the loss of a crew member. (en)
- World War I: The barque was sunk in the North Sea off Hvidingsö by . Her crew survived. (en)
- World War I: The AG-class submarine was sunk off Libava, probably by a mine. (en)
- The exploded and sank at Scapa Flow, Orkney Isles with the loss of 804 of her 806 crew. (en)
- World War I: The schooner was scuttled in the North Sea east north east of Rattray Head, Aberdeenshire by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea off Lerwick by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Aegean Sea north of Cape Phessos, Andros, Greece by with the loss of three of her crew. (en)
- World War I: The minesweeping boat struck a mine and sank in the Baltic Sea off Rauma. (en)
- World War I: The collier was torpedoed and sunk in the Atlantic Ocean south west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The passenger ship was torpedoed and sunk in the English Channel south of the Owers Lightship by with the loss of a crew member. (en)
- World War I: The trawler struck a mine and sank in the English Channel with the loss of eleven of her crew. (en)
- World War I: The coaster was torpedoed and damaged in the North Sea west of the Noord Hinder Lightship by . She was then shelled and sunk south west of the Noord Hinder Lightship by . (en)
- World War I: The trawler was shelled and sunk in the North Sea by . Her crew survived. (en)
- World War I: The cargo ship struck a mine in the North Sea north of Scarborough, Yorkshire . She was beached but was a total loss. (en)
- The coal barge came ashore at Key Largo, Florida and was wrecked. (en)
- World War I: The barquentine was sunk in the Atlantic Ocean off Villa do Conde by . (en)
- World War I: The barquentine was scuttled in the English Channel south east of Start Point, Devon, United Kingdom by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by south of Ouessant, Finistère, France by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Mediterranean Sea by . (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel south west of Portland Bill, Dorset by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the North Sea north north east of Muckle Flugga, Shetland Islands by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed, shelled and sunk in the Strait of Gibraltar by with the loss of a crew member. (en)
- World War I: The cargo ship was sunk in the Strait of Gibraltar off Cape Roche, Spain by . Her crew survived. (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sardinia by . (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel south east of Start Point, Devon by . Her crew survived. (en)
- World War I: The schooner was sunk in the Atlantic Ocean west of the Orkney Islands, United Kingdom by . Her crew survived; they were rescued by . (en)
- World War I: The fleet messenger was sunk in the Aegean Sea by with the loss of 44 lives. One of the survivors was taken as a prisoner of war. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean off Bantry, County Cork, United Kingdom by . (en)
- World War I: The full-rigged ship was shelled and sunk in the Atlantic Ocean west of Madeira, Portugal by with the loss of eleven of her crew. Survivors were rescued by . (en)
- World War I: The cargo ship was scuttled in the English Channel north east of Ouessant, Finistère by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean north west of Ouessant, Finistère, France by . Her crew survived. (en)
- World War I: The Type U 57 submarine was torpedoed and sunk in the North Sea by with the loss of all 40 crew. (en)
- World War I: The barque was sunk in the Atlantic Ocean west of the Isles of Scilly by . Her crew survived. (en)
- World War I: The naval trawler struck a mine and sank in the North Sea east of Aldeburgh, Suffolk with the loss of five of her crew. (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean north west of Madeira, Portugal by . (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea west of Holmengrå, Hordaland, Norway by . Her crew survived and were rescued by . (en)
- World War I: The cargo liner was torpedoed and sunk in the Atlantic Ocean ) south east of Galley Head, County Cork by with the loss of a crew member. (en)
- World War I: The brigantine was scuttled in the Mediterranean Sea west of Marsala, Sicily by . (en)
- World War I: The cargo ship struck a mine and sank in the North Sea south east by east of Auskerry, Orkney Islands . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west by west of the Esha Ness Lighthouse, Shetland Islands by (en)
- World War I: The cargo ship was sunk in the North Sea off Scheveningen, South Holland by . Her crew survived. (en)
- World War I: The Type UB II submarine struck a mine and sank in the North Sea off Zeebrugge, West Flanders, Belgium with the loss of all 13 crew. (en)
- World War I: The barque was captured and burned in the Coral Sea by . (en)
- World War I: The fishing smack was scuttled in the North Sea by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the North Sea north east of Muckle Flugga, Shetland Islands by with the loss of a crew member. (en)
- World War I: The cargo ship struck a mine and sank in the Bay of Biscay east of Kerdonis Point, Belle Île, Morbihan, France with the loss of four of her crew, or six wounded. Refloated in 1928 and scrapped. (en)
- World War I: The four-masted schooner was captured and scuttled in the Atlantic Ocean south west of Ouessant, Finistère, France by . Her crew survived. (en)
- World War I: The fishing vessel was sunk in the North Sea off the Dutch coast by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the North Sea off Lerwick, Shetland Islands, United Kingdom by . (en)
- World War I: The trawler was scuttled in the Atlantic Ocean off Suðuroy by . Her crew survived. (en)
- World War I: The Schooner was captured and sunk by in the Pacific Ocean. (en)
- World War I: The escort vessel was torpedoed and sunk in the Atlantic Ocean west north west of Tory Island by with the loss of a crew member. (en)
- World War I: The full-rigged ship was scuttled in the Atlantic Ocean west of the Fastnet Rock by . Her crew survived. (en)
- World War I: The E-class destroyer was torpedoed and sunk in the North Sea north north east of Peterhead, Aberdeenshire by with the loss of eight of her 70 crew. (en)
- World War I: The sailing vessel was sunk in the Mediterranean Sea between Sardinia and Sicily by . (en)
- The troop ship was rammed at anchor by Panama off Tompkinsville, New York and was filling rapidly when towed to a mudbank and beached. Later raised, repaired and put in service as . No casualties or one killed. (en)
- World War I: The collier was scuttled in the Atlantic Ocean south by east of Santa Maria Island, Azores, Portugal by . Her crew survived. (en)
- World War I: The coaster was torpedoed and sunk in the English Channel south west of Prawle Point, Devon, United Kingdom by . Her crew survived. (en)
- World War I: The four-masted schooner was captured and scuttled in the Atlantic Ocean south of the Azores by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the Mediterranean Sea off Cape Spartivento, Calabria by . (en)
- World War I: The cargo ship was sunk in the Atlantic Ocean off Cabo Toriñana, Spain by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Mediterranean Sea south west of Gozo, Malta by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west by south of the Fastnet Rock by with the loss of a crew member. (en)
- World War I: The troopship was torpedoed and sunk in the Mediterranean Sea south east by east of Malta by with the loss of over 156 lives. (en)
- World War I: The barque was scuttled in the Atlantic Ocean by . Her crew survived. (en)
- World War I: The cargo ship was shelled and sunk in the Atlantic Ocean west of Belle Île, Morbihan, France by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea north west of Jijelli, Algeria by . Her crew survived. (en)
- World War I: The collier was torpedoed and sunk in the Mediterranean Sea north north west of Cape Sigli by with the loss of a crew member. (en)
- The barge sank in Gas House Channel, Lynn, Massachusetts. (en)
- World War I: The cargo ship was torpedoed and sunk in the North Sea with the loss of one crew whilst in convoy from Lerwick, at by . (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean west north west of Tory Island, County Donegal by . Her crew survived. (en)
- World War I: the brigantine was shelled and sunk in the Strait of Sicily by . (en)
- World War I: The passenger ship was torpedoed and damaged in the Bay of Biscay west of Sables d'Olonne by with the loss of a crew member. She was beached on the Île de Ré but was later refloated. (en)
- World War I: The schooner was captured and scuttled in the Atlantic Ocean north west of Ireland by . Her crew survived. (en)
- World War I: The auxiliary schooner was sunk in the North Sea west of Egersund, Rogaland by . Her crew survived. (en)
- The patrol vessel was damaged beyond repair by the explosion of her gasoline tank at New York. (en)
- World War I: The passenger ship was shelled and sunk in the North Sea off Texel, North Holland by . (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel by . Her crew survived. (en)
- World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of the Fastnet Rock by with the loss of two crew. Two survivors were taken as prisoners of war. (en)
- World War I: The five-masted schooner was scuttled in the Atlantic Ocean west of Belle Île by . Her crew survived. (en)
- World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Matapan by . (en)
- World War I: The cargo ship was torpedoed and sunk in the English Channel north by west of the Île de Batz, Finistère, France by with the loss of eleven of her crew. (en)
- World War I: The cargo ship was sunk in the Gulf of Genoa off Portofino, Genoa by . (en)
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