1. In 1804, Alexander Hamilton, former U.S. Secretary of the Treasury and one of the Founding Fathers, died as a result of injuries sustained in a duel with Vice President Aaron Burr. The duel took place in New Jersey, but Hamilton was brought to Washington D.C. for medical treatment before passing away the next day.

2. On December 11, 1928, the National Broadcasting Company (NBC) launched its first television broadcast in Washington D.C. The station, WRC-TV, was one of the earliest in the country and helped to pave the way for the widespread adoption of television.

3. In 1941, the United States entered World War II following the attack on Pearl Harbor on December 7. On December 11, President Franklin D. Roosevelt addressed a joint session of Congress to declare war on Japan and rally the nation behind the war effort.

4. On December 11, 1998, the U.S. House of Representatives approved two articles of impeachment against President Bill Clinton, charging him with perjury and obstruction of justice related to his affair with White House intern Monica Lewinsky. The Senate later acquitted President Clinton of both charges.

5. In 2019, the Washington D.C. Council voted to decriminalize fare evasion on public transit. Under the new law, people caught jumping turnstiles or riding without a valid fare would face a fine rather than criminal charges. The move was seen as a way to address concerns about racial bias in fare enforcement.