Musical.ly and TikTok merged, combining the users of both apps to form one community.
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The King of England, William II, was killed by an arrow while hunting in New Forest Hampshire, England.
Adolf Hitler became Führer of Germany following the death of President Paul von Hindenburg.
A bomb exploded at the railway station in Bologna, Italy.
Samuel Briggs and his son patented his nail-making machine.
The Space Race began between the two Cold War rivals, the USA and the USSR.