45 BCE:
- Assassination of Julius Caesar: Dictator Julius Caesar is killed by a group of senators led by Marcus Junius Brutus and Gaius Cassius Longinus in the Roman Senate.
1776:
- The British Evacuate Boston: British troops depart from Boston, Massachusetts, marking the end of the Siege of Boston and a significant victory for the American colonists in the American Revolutionary War.
1805:
- Lewis and Clark Expedition: The Corps of Discovery, led by Meriwether Lewis and William Clark, leaves Camp Dubois in Illinois to embark on their historic expedition across the western United States.
1861:
- Kingdom of Italy Proclaimed: The Kingdom of Italy is proclaimed with Victor Emmanuel II as the first king. It marks a unification of many Italian states into a single country.
1917:
- Russian Revolution: Tsar Nicholas II abdicates, ending the Romanov dynasty's rule in Russia. This significant event paves the way for the eventual rise of the Bolsheviks and the establishment of the Soviet Union.
1942:
- Battle of Midway Begins: The United States Navy launches a surprise attack on the Imperial Japanese Navy's fleet in the Battle of Midway, turning the tide of the war in the Pacific in favor of the Allies.
1969:
- Golda Meir Becomes Israel's Prime Minister: Golda Meir is elected Prime Minister of Israel, making her the first woman to hold this office in the country's history.
1992:
- Operation Provide Hope: The United States sends troops and humanitarian aid to Somalia as part of Operation Provide Hope, aimed at addressing the humanitarian crisis in the country.
2011:
- United Nations Security Council Resolution 1973: The United Nations Security Council passes Resolution 1973, authorizing military intervention in Libya to protect civilians during the Libyan Civil War.
2020:
- COVID-19 Pandemic Declared: The World Health Organization (WHO) declares the outbreak of COVID-19 a global pandemic as cases spread rapidly across countries.