Expo '74, officially known as the International Exposition on the Environment, Spokane 1974, was a world's fair held May 4, 1974, to November 3, 1974, in Spokane, Washington, in the northwest United States. It was the first environmentally themed world's fair and attended by roughly 5.6 million people.
Expo '74, officially known as the International Exposition on the Environment, Spokane 1974, was a world's fair held May 4, 1974, to November 3, 1974, in Spokane, Washington, in the northwest United States. It was the first environmentally themed world's fair and attended by roughly 5.6 million people.
Source: Wikipedia "Expo '74" · CC BY-SA 4.0
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