Microsoft announced its plans to acquire Activision Blizzard for $68.7 billion.
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The plans to construct the World Trade Center in New York City were announced to the public.
Massachusetts's Marconi Wireless Station Site successfully sent the first radio transmission between the US and Europe.
The first polar bear in America was exhibited in Boston.
The lie detector, invented in 1921 by John Augustus Larson, was first used in the Netherlands.
The Paris Peace Conference began in France.
