- 1457 BC Battle of Megiddo: Egyptian forces of Thutmose III defeat a large Canaanite coalition under King of Kadesh. First battle recorded with a reliable account.
- 1705 Queen Anne of England knights Isaac Newton at Trinity College, Cambridge
- 1746 Jacobite Rising 1745: Battle of Culloden, the last battle on British soil: Royalist troops under the Duke of Cumberland defeat the Jacobite army of Charles Edward Stuart
- 1900 US Post Office issues 1st books of postage stamps
- 1917 Vladimir Lenin issues his radical “April Theses” calling for Soviets to take power during the Russian Revolution [OS Apr 4]
- 1948 Organization for European Economic Cooperation (EEC) forms in Paris
- 2003 Treaty of Accession is signed in Athens admitting 10 new member states to the European Union