Walter Hunt patented the safety pin.
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Jackie Robinson signed the first Major League Baseball contract for a Black ballplayer.
The first photo of a black hole that was taken in 2017 was announced to the public.
The UK, Ireland, and Northern Ireland governments signed the Good Friday Agreement.
The first-ever color 3D movie, 'House of Wax,' premiered in New York.
Paul McCartney announced he would leave The Beatles.
