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Dashed edge = started before, or continues beyond, this day
Events on Saturday 21 April 1962 1
1962Seattle World's Fair opensCentury 21 Exposition debuts the Space NeedleThe Century 21 Exposition opened in Seattle on April 21, 1962, showcasing space-age technology and the newly built Space Needle. Over nine million visitors attended before it closed in October. The fair left behind landmarks including the Space Needle and the Pacific Science Center.