Global Television Events
| Year | Event |
|---|---|
| 1873 | Willoughby Smith discovered the photoconductivity of the element selenium. This led to the invention of the photoelectric cell. |
| 1877 | George R. Carey of Boston, Massachusetts creates a selenium telectroscope—a camera that could project a moving image to a distant point. The telectroscope was the first television prototype. |
| 1880 | Proposals to transmit images by rapidly scanning them in succession are independently made by William E. Sawyer of the United States and Maurice Leblanc of France. |
| 1884 | Paul Nipkow invents the Nipkow disk, a means of mechanically scanning an image. This method was later used in mechanical television experiments. |
| 1895 | Noah S. Amstutz demonstrates the transmission of photographic halftone images by electric telegraphy. |
| 1897 | Karl Ferdinand Braun invents the cathode ray tube, using it as an oscilloscope. |
| 1900 | The word "television" is coined by Constantin Perskyi on August 18 at the First International Electricity Congress in Paris, France. |
| 1907 | Boris Rosing transmits silhouette images of geometric shapes, using a Nipkow disc, mirror-drum, and a cathode-ray tube receiver. |
| 1908 | In his letter to Nature, Alan Campbell-Swinton describes the modern electronic camera and display system which others are to develop throughout the 1920s. |
| 1921 | Charles Francis Jenkins with a group of friends incorporates Jenkins Laboratories in Washington, D.C. with the purpose of "developing radio movies to be broadcast for entertainment in the home". |
| 1922 | Charles Jenkins' first public demonstration of television principles. A set of static photographic pictures was transmitted from Washington, D.C. to the Navy station NOF in Anacostia by telephone wire, and then wirelessly back to Washington. |
| 1922 | Philo Farnsworth first describes an image dissector tube, which uses cesium to produce images electronically, but will not produce a working model until 1927. |
| 1923 | Charles Jenkins' first demonstration of "true" television with moving images. This time 48-line moving silhouette images are transmitted at 16 frames per second from Washington to Anacostia Navy station. |
| 1923 | Vladimir Zworykin applies for patent for an all-electronic television system, the first ancestor of the electric scanning television camera. The patent was not granted until 1938 after significant revisions and patent interference actions. |
| 1924 | John Logie Baird demonstrated a semi-mechanical television system with the transmission of moving silhouette images. |
| 1924 | Vladimir Zworykin files a patent application for the kinescope, a television picture receiver tube. |
Read more about this topic: Before 1925 In Television
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