Nikola Tesla was a Serbian-American inventor, electrical engineer, and physicist known for his groundbreaking work in the field of electricity. Born on July 10, 1856, in Smiljan, Croatia, Tesla immigrated to the United States in 1884 and began working for Thomas Edison. He later established his own laboratory and made numerous important discoveries, including the development of alternating current (AC) electrical power systems. Tesla held over 300 patents and was a pioneer in wireless communication and renewable energy technologies. Despite facing financial struggles and disputes with other inventors, Tesla's contributions to science and technology continue to influence the world today. He passed away on January 7, 1943, leaving behind a legacy of innovation and visionary thinking.