Rebecca Lee Crumpler became the first African American female physician.
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At 340 days, Astronaut Scott Kelly completed the longest single mission aboard the International Space Station.
The Venera 3 space probe became the first human-made object to land on another planet.
The first woman won the Life Achievement Award and was claimed by Bette Davis.
The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.
A Study in Scarlet became the first US edition of British detective Sherlock Holmes written by Arthur Conan Doyle.
