Who invented the radio?
Nikola Tesla patented a basic design for radio in 1896 and submitted the patent predating Marconi's submission. While Marconi's Telegraph Company gained popularity and success in the stock market due to Marconi's family connections with English aristocracy.

Thanks to the support of investments from Edison and Andrew Carnegie, Marconi, a young Italian nobleman, gained international recognition.

Tesla tried to prove that he was the creator of radio but it wasn't until 1943, where Marconi's patents were deemed invalid; however, people still have no idea about Tesla's work with radio.

Reginald Aubrey Fessenden