363
Ancient
Roman Emperor Julian Departs for Persian Campaign
Emperor Julian the Apostate departed Antioch with a massive army to invade the Sasanian Empire. The campaign would end in disaster and Julian's death three months later.
On This Day in History
1770
Politics
Boston Massacre
British soldiers fired into a crowd of colonists in Boston, killing five people including Crispus Attucks. The event galvanized colonial opposition to British rule and became a rallying point for revolution.
1836
Invention
Samuel Colt Manufactures First Production Revolver
Samuel Colt produced his first commercial revolver at his factory in Paterson, New Jersey. The weapon would transform both warfare and American frontier culture.
1868
Politics
Senate Impeachment Trial of Andrew Johnson Begins
The Senate impeachment trial of President Andrew Johnson began. He was charged with violating the Tenure of Office Act but was acquitted by a single vote.
1946
Politics
Winston Churchill Delivers 'Iron Curtain' Speech
Former Prime Minister Churchill delivered his famous 'Iron Curtain' speech at Westminster College in Fulton, Missouri. The speech is considered one of the opening salvos of the Cold War.
1953
Politics
Joseph Stalin Dies
Soviet leader Joseph Stalin died at age 74 after suffering a stroke. His death ended a reign of terror that had lasted nearly three decades and killed millions.
1970
Politics
Nuclear Non-Proliferation Treaty Takes Effect
The Nuclear Non-Proliferation Treaty entered into force, aimed at preventing the spread of nuclear weapons. It remains the cornerstone of the global nuclear nonproliferation regime.