About Werner von Siemens
Ernst Werner Siemens (von Siemens from 1888; SEEM-ənz; German: [ˈziːməns, -mɛns]; 13 December 1816 – 6 December 1892) was a German electrical engineer, inventor and industrialist. Siemens's name has been adopted as the SI unit of electrical conductance, the siemens. He founded the electrical and telecommunications conglomerate Siemens and invented the electric tram, trolley bus, electric locomotive and electric elevator. His dynamo laid the foundation for the modern age of electricity and he was involved in the development of the electric car.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.