The first vice president of the United States, John Adams, was sworn in.
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The Surgeon's Photograph, the most famous photo of the Loch Ness Monster, was published.
Brazil founded the city of Brasília and made it the nation's new capital city.
Climate change activist Greta Thunberg gave a speech in London, leading to protests across the city for four days.
While observing a compass needle, scientist Hans Christian Ørsted discovered electromagnetism.
The FBI arrested an American terrorist, Timothy McVeigh, who was responsible for the Oklahoma City bombing.
