The Pledge of Allegiance was first recited in American schools.
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Mariner IX took two photos of Mars' north pole.
President Theodore Roosevelt changed the name of the 'Executive Mansion' to 'The White House.'
Organized by the Columbian Order, the first recorded 'Columbus Day' was celebrated on this day.
Christopher Columbus claimed he first saw land at present-day Bahamas.
The six billionth living human being was born.
