At 340 days, Astronaut Scott Kelly completed the longest single mission aboard the International Space Station.
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The first woman won the Life Achievement Award and was claimed by Bette Davis.
Ohio became the 17th state to join the United States of America.
A Study in Scarlet became the first US edition of British detective Sherlock Holmes written by Arthur Conan Doyle.
Rebecca Lee Crumpler became the first African American female physician.
The Yellowstone National Park Protection Act went into law, making it the first National Park in the world.