Tesla Lights Up St. Louis: The Birth of Radio

Nikola Tesla demonstrated wireless radio transmission to a St. Louis audience in 1893, showing that electromagnetic signals could carry information through the air without physical wires. His patents, filed between 1897 and 1900, described the fundamental components of radio: tuned circuits, antennas, and transmission methods that could send signals across vast distances. Guglielmo Marconi, who is often credited as radio's inventor, built his first successful devices using Tesla's oscillator patents without authorization. The US Patent Office initially awarded key radio patents to Tesla but reversed the decision in 1904, granting them to Marconi, whose business connections and lobbying efforts proved more effective than Tesla's. The Supreme Court restored Tesla's priority in 1943, months after his death in a New York hotel room, penniless. Tesla's wireless demonstration in St. Louis predated Marconi's famous 1901 transatlantic transmission by eight years, yet Marconi's name became synonymous with radio while Tesla's contributions were largely forgotten for decades.