• http://www.businessinsider.com, Christina Sterben
Seventy-five years ago today, the World's Fair came to New York, and with it came one of the world's first official time capsules.
Called "Dawn of a New Day," the 1939 Fair adopted a future-focused theme, which would become standard in subsequent World's Fairs.
Electric giant Westinghouse took the theme to heart. The company created one of the most ambitious time capsules ever: a 7 1/2-foot tube, filled with items from the current era, for a part of its display. The capsule will remain sealed until the year 6939 — 5,000 years after its creation — along with its sister capsule made in 1964.
Although not the first to make a time capsule, Westinghouse was one of the first to approach it scientifically, locking items in a non-corrosive and considerably hard metallic alloy called Cupoloy, created especially for the exhibit. The compound was 99.4% copper, 0.5% chromium, and 0.1% silver.
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