On this day, 134 years ago, July 31, 1891 (June 26, 1891 in the lunar calendar), American inventor Edison applied for a patent for a motion picture camera. On July 31, 1891, American inventor Edison applied for a patent for the motion picture camera. Thomas Alva Edison (February 11, 1847-October 18, 1931) was an American inventor and businessman. A person who developed many important devices, but in the battle with Westinghouse, he used businessman methods that were not accepted by some people. Named "The Wizard of Menlo Park" by a newspaper reporter, he was the first inventor in the world to use mass production principles and his industrial research laboratory to produce inventions. Edison is regarded as the most inventor of contemporary times, with 1093 patents under his name. However, most of the inventions were not original, and Edison only improved on some other patents, and in fact many of them were invented by many of his employees. [Source request] Therefore, there are criticisms that Edison is not qualified to share the credit. However, Edison received patents from many countries, including the United States, the United Kingdom, France and Germany. In 1892, General Electric was founded, later the largest company in the United States: Strange Company, with a total of 24414 patents, including Edison's 1093 patents. In 1908, Edison founded the "Motion Picture Patents Company (commonly known as Edison Trust)", a consortium of nine major film studios. Comment: Thanks to Edison, the invention of the electric light alone deserves our eternal respect for him.