Video: 'Documentary | Thomas Edison - The Wizard of Menlo Park' (light bulb at 33:38; Oct. 22, 1879, at 44:35)

(Wednesday, October 22, 1879, 1:30 a.m. local time) — After 14 months of experiments, Thomas Edison invented the first practical electric incandescent lamp today at his laboratory in Menlo Park, New Jersey.

Using a filament of carbonized thread, the bulb lasted 13½ hours before burning out.