Nikola Tesla was a Serbian-American inventor, engineer, and futurist best known for his contributions to the development of alternating current (AC) electricity. After studying engineering in the Austrian Empire, Tesla moved to the U.S. in 1884, working briefly for Edison before establishing his own ventures. His innovations, including the AC induction motor, wireless transmission, and the Tesla coil, had a profound impact on modern technology. Despite financial struggles later in life, Tesla's legacy grew, and the SI unit for magnetic flux density, the Tesla, was named in his honor.