- 334 BC - The Greek army of Alexander the Great defeats Darius III of Persia in the Battle of the Granicus.
- 1455 - Wars of the Roses: At the First Battle of St Albans, Richard, Duke of York, defeats and captures King Henry VI of England.
- 1807 - A grand jury indicts former Vice President of the United States Aaron Burr on a charge of treason.
- 1819 - The SS Savannah leaves port at Savannah, Georgia, United States, on a voyage to become the first steamship to cross the Atlantic Ocean. The ship arrived at Liverpool, England on June 20.
- 1826 - The HMS Beagle departed Plymouth with Charles Darwin aboard.
- 1906 - The 1906 Summer Olympics, not now recognized as the first modern Olympic Games, opens in Athens.
- 1906 - Wright brothers are granted U.S. patent number 821,393 for their "Flying-Machine".
- 1915 - Lassen Peak erupts with a powerful force, and is the only volcano to erupt other than Mount St. Helens in the continental US during the 20th century.
- 1920 - The Dearborn Independent newspaper exposes the Jews with the headline, “The International Jew: The World’s Problem”
- 1939 - World War II: Germany and Italy sign the Pact of Steel.
- 1940 - British government arrests Fascist leaders in the UK
- 1968 - The nuclear-powered submarine the USS Scorpion sinks with 99 men aboard 400 miles southwest of the Azores.
- 1990 - North and South Yemen are unified to create the Republic of Yemen.