The USS Holland (SS-1) became the first modern submarine commissioned for the United States Navy.
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A royal wedding occurred in Munich, which is considered to be the first-ever Oktoberfest event.
Rio de Janeiro, Brazil, unveiled its iconic Christ The Redeemer statue.
The USSR's Voskhod 1 spacecraft became the first spaceflight with multiple crew members.
The six billionth living human being was born.
Christopher Columbus claimed he first saw land at present-day Bahamas.
