Incandescent light bulb street in the world to be lit by an incandescent lightbulb was Mosley Street, Newcastle upon Tyne, United Kingdom. It was lit by Joseph Swan's incandescent lamp on 3 February 1879. Thomas Edison began serious research into developing a practical incandescent lamp in 1878. Edison filed his first patent application for "Improvement In Electric Lights" on 14 October 1878. After many experiments, first with carbon in the early 1880s and then with platinum and other metals, in the end Edison returned to a carbon filament. The first successful test was on 22 October 1879, and lasted 13.5 hours. Edison continued
Edison State Park development laboratory in Menlo Park was the first of its kind in the world. On October 22, 1879, Thomas Edison tested a bamboo filament which lasted over 30 hours, which was used to create the first successful incandescent light bulb. This accomplishment followed Edison's testing of over a thousand filaments in six months. 3 years earlier, Thomas Edison tested his wax and tinfoil phonograph by recording and playing "Mary Had a Little Lamb." Thomas Edison improved Alexander Graham Bell's telephone using carbon. In addition, he invented an electric train and tested it on a track built around his laboratory, now