1373: Anglo-Portuguese Treaty of Perpetual Alliance (world’s oldest still in existence) is signed in London between King Edward III of England and King Ferdinand I of Portugal

1866: US House of Representatives passes the 14th Amendment (Civil Rights)

1878: Congress of Berlin begins, determines the territories of the states in the Balkan peninsula following the Russo-Turkish War of 1877–78

1956: The last British troops leave the Suez Canal Zone in Egypt

2000: South Korean President Kim Dae-jung meets North Korean dictator Kim Jong-il for the beginning of the first-ever inter-Korean summit in the northern capital of Pyongyang

Source: Onthisday.com