One of the most visited exhibits was one on electricity. At night the fair was lit by electricity. Who would light the fair would soon light the world. Edison and Westinghouse both put in bids to light the fair. Tesla’s AC polyphase system would be on display for not only the US to see, but the whole world. Originally, Tesla planned on using GE bulbs but Edison, still miffed, would not sell to Tesla and Westinghouse. Instead, Westinghouse came up with a more efficient double-stopper light bulb. Help Nikola, he used some Vin Mariani, and only 1 hour left to turn the lights on!