On July 10, 1856, Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist Nikola Tesla was born. He is probably best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Although his work fell into obscurity after his death, he experienced a renaissance in the popular culture of the late 1990s, becoming a center of many conspiracy theories including UFO theories and New Age occultism. In 1960, in honor of Tesla, the General Conference on Weights and Measures for the International System of Units dedicated the term "tesla" to the SI unit measure for magnetic field strength.