At 340 days, Astronaut Scott Kelly completed the longest single mission aboard the International Space Station.
Source
The Venera 3 space probe became the first human-made object to land on another planet.
A Study in Scarlet became the first US edition of British detective Sherlock Holmes written by Arthur Conan Doyle.
President John F. Kennedy founded the Peace Corps.
Rebecca Lee Crumpler became the first African American female physician.
James Cameron's Titanic became the first film to gross more than $1 billion worldwide.
