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Seventy-five years ago, on April 30, 1939, the colossal New York World’s Fair opened in what is now Flushing Meadows-Corona Park, in the borough of Queens. The 1939 world exposition — or “expo,” for short — was unique in many respects, not least in that it differed in both theme and purpose from the expositions that had come before, in places like Paris, London, Chicago, and St. Louis. Those world’s fairs had, by and large, celebrated technological innovation and advances in science and medicine. The New York World’s Fair, on the other hand, took as its focus nothing less than, in the words of the fair’s official bulletin, presenting visions of “the World of Tomorrow.”
This, the fair told its visitors — more than 40 million of them, by the time the expo ended — this is what we believe the future will look like.
That the future, in many of the exhibits and pavilions at the fair, looked almost wholly urban, rather sterile and vaguely Le Corbusierian might be a little disappointing to some viewers today. But when one considers that the 1939 expo — the second-largest American world’s fair of all time — was conceived, planned and executed in the latter years of the Great Depression and on the cusp of the global cataclysm of World War II, there’s something refreshingly and almost audaciously positive about the overall vibe. The exhibits might not have accurately anticipated or imagined what “Tomorrow” actually ended up looking like. But the fact that thousands brought the fair into being, and tens of millions came to witness the results of their efforts, suggests an optimism about the distant, if not the immediate, future that feels downright enviable today.
— Ben Cosgrove is the Editor of LIFE.com