On this day(20-7)

1656 – Led by King Charles X Gustav, the armies of Sweden and Brandenburg defeated the forces of the Polish–Lithuanian Commonwealth near Warsaw.


1927 – Five-year-old Michael I became King of Romania upon the death of his grandfather Ferdinand I.


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.


1951 – Abdullah I of Jordan was assassinated by a Palestinian from the Husseini clan while visiting Al-Aqsa Mosque in Jerusalem.


1969 – The Apollo 11 lunar module landed on the Sea of Tranquillity, where Neil Armstrong and Buzz Aldrin became the first men to walk on the moon six-and-a-half hours later.