The Panama–Pacific International Exposition (PPIE) was a world's fair held in San Francisco, in the United States, between February 20 and December 4 in 1915. Its ostensible purpose was to celebrate the completion of the Panama Canal, but it was widely seen in the city as an opportunity to showcase its recovery from the 1906 earthquake. The fair was constructed on a site in San Francisco, along the northern shore, between the Presidio and Fort Mason, now known as the Marina District.