This document summarizes the history and development of electronic musical instruments from the 18th century to modern day. It discusses early pioneers like Václav Prokop Diviš who invented the first electronic instrument, the "Denis d'or", in the 1700s. Over time, inventors like Elisha Gray, Thaddeus Cahill, and Leon Theremin developed new electronic instruments using technologies like electricity and radio frequencies. Finally, Dr. Robert Moog revolutionized electronic music in the 1960s-70s by designing the first portable and affordable synthesizer, opening up electronic music production to the masses.