Nikola Tesla was born on 10 July 1856, he was an inventor, mechanical engineer and electrical engineer.

He was an important contributor to the birth of commercial electricity and is best knownfor his many revolutionry developments in the field of electromagnetism in the late 19th and early 20th centuries. Tesla's patents and theoretical work formed the basis of modem alternating current (AC) electric power system, including the polyphase system of electrical distribution and the AC motor. This work helped user in the Second Industrial Revolution. 

Born an ethnic Serbian in the village of Smijan (now part of Gospic), in the Croatian Military Frontier of the Austrian Empire (modern-day Croatia). Tesla was a subject of the Austrian Empire by birth and later became an American citizen. Because of his 1989 demonstration of wireless communication through radio and as the eventual victor in the "War of Currents", he was widely respected as one of the greatest electrical engineers who worked in America. epioneerd modern electrical engineering and many of his discoveries were of groundbreaking importance.