Hillary Clinton announced her candidacy for US President.
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The first Space Shuttle mission was launched.
The world's first person visited space.
The 'Twentieth Century Dinosaurs' exhibit opened at the Smithsonian Institution Museum of Natural History.
Rock Around The Clock by Bill Haley and His Comets was recorded.
Project Starshot was announced by Yuri Milner, Stephen Hawking, and Mark Zuckerberg.
