context: The first ancestor of a fluorescent lamp were discharge lamps. For the first time, the glow of gases under the influence of an electric current was observed by Mikhail Lomonosov, passing a current through a glass ball filled with hydrogen. It is believed that the first discharge lamp was invented in 1856. Heinrich Geisler received a blue glow from a gas-filled tube that was excited by a solenoid. On June 23, 1891, Nikola Tesla patented an electric lighting system with gas discharge lamps (patent No. 454,622), which consisted of a high-frequency high-voltage source and gas-discharge argon lamps, which he had previously patented (patent No. 335,787 dated February 9, 1886, issued to the United States Patent Office) . Argon lamps are still in use. At the 1893 World's Fair in Chicago, Illinois, Thomas Edison showed a luminescent glow. In 1894, M.F. Moor created a lamp in which he used nitrogen and carbon dioxide, emitting pink-white light. This lamp was a moderate success. In 1901, Peter Cooper Hewitt demonstrated a mercury lamp that emitted a blue-green light, and was thus unsuitable for practical purposes. However, its design was very close to modern, and had much higher efficiency than the Geisler and Edison lamps. In 1926, Edmund Germer and his staff proposed increasing the operating pressure within the flask and coating the flask with fluorescent powder, which converts the ultraviolet light emitted by the excited plasma into a more uniform white-colored light. E. Germer is now recognized as the inventor of the fluorescent lamp. General Electric later bought Hermer’s patent, and led by George E. Inman brought fluorescent lamps into commercial use by 1938. In 1951, for the development of fluorescent lamps in the USSR, V.A. Fabrikant was awarded the title of laureate of the Stalin Prize of the second degree together with S.I. Vavilov, V.L. Levshin, F.A. Butaeva, M.A. Konstantinova-Schlesinger, V.I.Dolgopolov.
question: Who was the inventor of the fluorescent lamp?
answers.text: Thomas Edison