Wikipedia:Selected anniversaries/July 20
July 20: Independence Day in Colombia (1810); Friends' Day in Argentina and other Latin American countries.
- 1402 – Forces under Timur defeated the Ottomans in the Battle of Ankara and captured Sultan Bayezid I.
- 1866 – Third Italian War of Independence: The Austrian Navy led by Wilhelm von Tegetthoff defeated a much larger Italian fleet in the Battle of Lissa.
- 1940 – Billboard magazine published its first "Music Popularity Chart".
- 1944 – Adolf Hitler survived an assassination attempt by German Resistance member Claus von Stauffenberg, who hid a bomb inside a briefcase during a conference at the Wolfsschanze military headquarters in East Prussia.
- 1969 – The Apollo 11 lunar module landed on the Sea of Tranquillity, where Neil Armstrong and Buzz Aldrin (pictured) would become the first men to walk on the moon six and a half hours later.
More events on this day... Recent days: July 19 – July 18 – July 17