The six billionth living human being was born.
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The Pledge of Allegiance was first recited in American schools.
The USS Holland (SS-1) became the first modern submarine commissioned for the United States Navy.
Rio de Janeiro, Brazil, unveiled its iconic Christ The Redeemer statue.
Christopher Columbus claimed he first saw land at present-day Bahamas.
The USSR's Voskhod 1 spacecraft became the first spaceflight with multiple crew members.
