1218 – The Fifth Crusade leaves Acre for Egypt.
1626 – Peter Minuit buys Manhattan.
1830 – “Mary Had a Little Lamb” by Sarah Josepha Hale is published.
1844 – Samuel Morse sends the message “What hath God wrought” (a biblical quotation, Numbers 23:23) from the Old Supreme Court Chamber in the United States Capitol to his assistant, Alfred Vail, in Baltimore, Maryland, to inaugurate the first telegraph line.
1883 – The Brooklyn Bridge is opened to traffic after 14 years of construction.
1921 – The trial of Sacco and Vanzetti opens.
1940 – Igor Sikorsky performs the first successful single-rotor helicopter flight.
1958 – United Press International is formed through a merger of the United Press and the International News Service.
1961 – American civil rights movement: Freedom Riders are arrested in Jackson, Mississippi, for “disturbing the peace” after disembarking from their bus.
1976 – The London to Washington, D.C., Concorde service begins.
1994 – Four men convicted of bombing the World Trade Center in New York in 1993 are each sentenced to 240 years in prison.
1999 – The International Criminal Tribunal for the former Yugoslavia in The Hague, Netherlands indicts Slobodan Milošević and four others for war crimes and crimes against humanity committed in Kosovo.
2001 – Mountaineering: Temba Tsheri, a 16-year-old Sherpa, becomes the youngest person to climb to the top of Mount Everest.