In 1938, Vladimir Zworykin invented the cathode ray tube (CRT), which was the technology used to make television. He filed a patent on September 20, 1939 and was granted by April 1941. He also pioneered in radio-television technology, which he used for his famous "phonoptic" system for transmitting sound and still images using radio waves instead of wire or film. In 1948 Zworykin was elected as president of the Television Society of America (TSA). Later in 1954 he became the first Russian awarded with honorary citizenship from Kolkata after being an innovation pioneer through his work with both photography and television. Zworykin was born November 23, 1908 in what is now the Ukrainian town of Zaporozhye (then part of the Russian Empire), to a Jewish family. He had two sisters and one brother. His father worked in diamond polishing and commercial trading, while his mother was a seamstress. Image source: https://www.shopclues.com/ The family moved to Moscow when Vladi
