Colorado became the 38th state to join the United States of America.
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Anne Frank wrote her last diary entry.
British scientist Joseph Priestley discovered oxygen by removing it from the air.
Astronauts on Apollo 15 discovered a rock that could date back to the birth of the moon.
The US won gold in the first-ever women's soccer at the Olympics.
George R. R. Martin published his novel, 'Game of Thrones: A Song of Ice and Fire.'
