Anne Miller became the first American patient to be treated with penicillin.
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American inventor Eli Whitney was granted a patent for a ground-breaking new type of cotton gin.
US President John F. Kennedy's body was moved to its final resting place in Virginia.
Identical twins were no longer identical after one returned from a mission to space.
The population of space hit a new record with 13 astronauts.
President Warren G. Harding became the first president to pay taxes in the US.
