The first-generation Apple Watch was released.
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Queen Elizabeth II knighted Sir Winston Churchill in London, England.
The Woolworth Building in New York City was officially opened, making it the world's largest building at the time.
A Soviet cosmonaut became the first human casualty during a space mission.
The famous Trojan Horse was used by the Greeks to gain entry into Troy.
A garment factory in Dhaka, Bangladesh, collapsed.
