Good morning from Virginia. 🇺🇸 On the morning of October 18, 1931, word went out from West Orange, New Jersey, that Thomas Edison was dead. He was eighty-four. The news traveled by telephone and telegraph and, within hours, by the very electric light he had done so much to make ordinary. Across the country that evening, at the request of President Hoover, people turned their lights down for a minute. In cities and in small towns the streets grew dimmer for a brief interval, then brightened again. It was a quiet acknowledgment of a man who had spent most of his life trying to understand how things worked and then figuring out how to make them work for other people. Edison had been born in 1847 in Milan, Ohio, a canal town that was already past its best days. He received little formal schooling. From boyhood he was hard of hearing, a circumstance that grew worse with the years and that he later said kept him from being distracted. What he possessed instead was an almost inexhaustible capacity for work and a habit of asking simple, practical questions. After years as a telegraph operator he established, in 1876, a laboratory at Menlo Park, New Jersey—the first research laboratory of its kind in the country. There, and later in the larger complex he built at West Orange, he assembled teams of skilled men, kept meticulous notebooks, and treated invention as a systematic enterprise rather than a solitary stroke of genius. The phonograph came first, in 1877, a machine that could record and reproduce the human voice. Then came the long, expensive effort to produce a practical system of electric lighting. The carbon-filament lamp he demonstrated in 1879 was only the most visible part of the work; what mattered equally was the generating plant, the distribution network, and the careful testing that made the whole system reliable enough for ordinary use. Motion-picture cameras and projectors followed, along with improvements to the telephone, the alkaline storage battery, and scores of other devices. By the time of his death he held more than a thousand United States patents. He liked to remark that genius was one percent inspiration and ninety-nine percent perspiration—an observation that matched the record of long nights and repeated failures preserved in his laboratory books. He was not a solitary figure. He employed chemists, machinists, glassblowers, and draftsmen. He raised capital, formed companies, and measured success by whether an invention could be manufactured and sold at a price people could pay. The laboratory at West Orange continued to operate after his death, and the methods he had established—teams of specialists, careful records, and the commercial testing of ideas—became part of the ordinary practice of American industry. The phonograph led, in time, to later forms of recorded sound. Electric light became the expected condition of an evening rather than a novelty. Motion pictures became an industry. Each of those developments carried forward work that had begun under his direction. On the day he died, the country he had helped to light paused, then turned the lights back on and went about its business. The pause itself was a measure of how thoroughly his inventions had entered daily life. The man who had once worked by oil lamp and gaslight had lived long enough to see his own system of illumination become the ordinary means by which Americans read the evening paper, walked home after dark, and, on that particular October evening, marked the end of his life. America 250 🇺🇸