A Serbian scientist born in Lika, Croatia. Got higher education in Prague, Czech Republic. Many of his inventions were stolen by Thomas Alva Edison. When Westinghouse was doing bad, he released the company of paying any royalty to him. Invented the Alternating Current (AC) generator, the Tesla coil, a crude radar, and many other things (including a Tesla Tower, often seen in Command and Conquer computer game). Became seriously mentally ill (paranoid schizophrenia).
Due mainly to the paranoid schizophrenia he picked up in his late thirties, he was completely ignored in the scientific circles. Many years later, a magnetic unit tesla was given name in his honor. Interestingly enough, many books still refuse to use this unit.

Died ill, ridiculed and completely poor in Croatia in 1943.