Wikipedia:Selected anniversaries/December 26
- 1776 – American Revolutionary War: George Washington led a column of the Continental Army across the Delaware River to launch a surprise attack against Hessian forces at the Battle of Trenton.
- 1825 – Imperial Russian Army officers led about 3,000 soldiers in protest against Nicholas I's assumption of the throne after his elder brother Konstantin removed himself from the line of succession.
- 1919 – American baseball player Babe Ruth (pictured) was sold by the Boston Red Sox to their rivals, the New York Yankees, beginning the 84-year-long "Curse of the Bambino".
- 1996 – The Federation of Korean Trade Unions called on its 1.2 million members to refuse to work, beginning the largest organized strike in South Korea's history.