Marconi transmits wireless signal 2200 miles across the Atlantic

On December 12, 1901, Guglielmo Marconi successfully transmitted the first wireless signal across the Atlantic Ocean. The historic transmission was sent from Poldhu in Cornwall, England, and received by Marconi himself in St. John’s, Newfoundland, over a distance of approximately 2,200 miles. The message consisted of the Morse code letter “S,” which was transmitted repeatedly. This groundbreaking achievement demonstrated the feasibility of long-distance wireless communication and marked a significant milestone in the development of radio technology. Marconi’s success paved the way for the global spread of radio communication, revolutionizing the way information was transmitted and received across vast distances.