Musical.ly and TikTok merged, combining the users of both apps to form one community.
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Andrew Hallidie introduced the cable car to San Francisco after witnessing a horse and carriage accident.
The finalized copy of the United States Declaration of Independence was signed by congress.
The Space Race began between the two Cold War rivals, the USA and the USSR.
Adolf Hitler became Führer of Germany following the death of President Paul von Hindenburg.
Iraq invaded the Gulf state of Kuwait.
