The Winter Olympics opened in Lake Placid, New York.
It was officially known as the III Olympic Winter Games.
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The electric typewriter went on sale for the first time in Syracuse, New York, USA.
Mark Zuckerberg founded the social networking website Facebook.
The first Mormon Pioneers left their homes in Nauvoo, Illinois, and began the long trek to the Salt Lake Valley.
The US Military shot down a Chinese high-altitude surveillance balloon.
The Codex Sinaiticus – one of the oldest known copies of the bible – was discovered in Egypt.
