text: The Century 21 Exposition (also known as the Seattle World's Fair) ran from April 21, 1962, to October 21, 1962. Nearly 10 million people attended the fair. As planned, the exposition left behind a fairground and numerous public buildings and public works; some credit it with revitalizing Seattle's economic and cultural life. The site, slightly expanded since the fair, is now called Seattle Center . This aerial photograph was taken October 22, 1961, during construction for the Exposition and shows the fairgrounds and downtown Seattle. Prominent in the frame is the Seattle Center Coliseum, built by the State of Washington to house its