Skip links
Published on: Ev

May 20, 1891

Columbia College, New York. Nikola Tesla gives a lecture, in which he speaks, in nervous English, to a large audience about ether as a medium for electricity, current as ether in motion, high-frequency current for artificial lightning, and the wireless lamp. The Columbia lecture definitively establishes Tesla as one of America’s leading electrical inventors. Only a few years after arriving in New York, Tesla is cited alongside Edison, Bell, and Thomson.