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200,000 Light Bulbs
The 1893 World Columbian Exposition included over 200,000 light bulbs.
December 14 at 3:02 PM 2.6 4
Nikola Tessla built an AC generator system for the world's fair that produced three times the energy used by Chicago
Nikola Tesla, with the Westinghouse Company, built an AC generator system for the world's fair that produced three times more power than used by the rest of Chicago.
November 19 at 1:39 PM 3.7 4