It is the 148th day of the year, with only 217 days remaining until the end of the year.
1588 - The Spanish Armada, with 130 ships and 30,000 men, sets sail from Lisbon heading for the English Channel. It will take two day for all ships to leave.
1754 - In the first engagement of the war, Virginia militia under 22-year-old Lieutenant Colonel George Washington defeat a French reconnaissance party in the Battle of Jumonville Glen in what is now Fayette County in southwestern Pennsylvania.
1863 - The 54th Massachusetts Volunteer Infantry, the first African-American regiment, leaves Boston, Massachusetts, to fight for the Union.
1937 - The Golden Gate Bridge in San Francisco, California, is officially open when President Franklin Roosevelt in Washington, D.C. pushes a button signaling the start of vehicle traffic.
1942 - In retaliation for the assassination of Reinhard Heydrich, Nazis kills over 1,800 people in Czechoslovakia.
1987 - 19-year-old West German pilot Mathias Rust evades Soviet Union air defenses and lands a private plane in the Red Square in Moscow. He is immediately detained and will not be release for one year and six days.
1999 - In Milan, Italy, after 22 years of restoration work, Leonardo da Vinci's masterpiece The Last Supper, is put back on display.