Wikipedia:Selected anniversaries/December 25

• 800 - Pope Leo III crowned Charlemagne emperor, a title that had been out of use in the West since the abdication of Romulus Augustulus in 476.
• 1776 - George Washington and his army crossed the Delaware River to launch a surprise attack on Hessian mercenaries at the Battle of Trenton.
• 1868 - The Republic of Ezo was founded in Hokkaido by rebels loyal to the deposed Tokugawa shogunate. In the first elections ever held in Japan, they elected Admiral Enomoto Takeaki as their President.
• 1991 - Mikhail Gorbachev resigned as president of the Soviet Union.

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