1898 US declares war on Spain
1901 New York becomes first state requiring auto license plates ($1 fee)
1915 The invasion of the Turkish Gallipoli Peninsula during World War I by Australian, British, French and New Zealand troops begins with landings at Anzac Cove and Cape Helles.
1916 Easter Rebellion: The United Kingdom declares martial law in Ireland.
1925 Hindenburg takes office as president of Germany
1945 Fifty nations gather in San Francisco, California to begin the United Nations Conference on International Organizations.
1962 US Ranger spacecraft crash lands on the Moon
1983 American schoolgirl Samantha Smith is invited to visit the Soviet Union by its leader Yuri Andropov after he read her letter in which she expressed fears about nuclear war.
1988 In Israel, John Demjanuk is sentenced to death for war crimes committed in World War II.
1990 The Hubble Telescope was deployed from Space Shuttle Discovery into orbit.