Nearly one million people protested for the disarmament of nuclear weapons in Central Park, New York City.
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The first-ever licensed kosher butcher opened in New York City.
The last slaves in New York were freed.
UN Women Goodwill Ambassador Emma Watson received a standing ovation for her gender inequality speech at the United Nations Headquarters, New York, US.
President Truman announced to the people of America that they successfully developed a hydrogen bomb.
An unidentified double flash of light was detected over the Indian Ocean south of Africa.
