Thomas Edison demonstrates incandescent lighting to the public for the first time on New Year's Eve, December 31, 1879 by illuminating some 100 bulbs in and around his laboratory in Menlo Park, New Jersey.
Thomas Edison had achieved a successful test of his carbonized cotton filament light bulb on October 21, 1879, which lasted for over 13 hours. He patented the first commercially viable version on November 4, 1879, and publicly demonstrated his invention on December 31, 1879.