The world’s largest twin-engine airliner completed its first trip.
The Boeing 777x flew from Washington to Seattle.
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Nike was founded.
NASA launched the Echo 2 experimental communications satellite.
Robert Williams became the first recorded person to be killed by a robot in the US.
The first-ever Emmy Awards were presented at the Hollywood Athletic Club in Los Angeles.
Grand Rapids, Michigan, became the first place in the US to add fluoride to its water supply in a bid to improve oral health.