In 1901, you could send important messages by telegraph provided there was line connection going point to point.  The telegraph opened up a whole new era of communication getting important messages delivered quickly.  Once hooked up, you did not have to wait for a ship or train to arrive bearing a letter. Steam powered ships made shipping much faster (days or weeks instead of years), but the telegraph connected places faster. The only snag was you needed either an underwater cable or a connection of telegraph poles to connect.

Guglielmo Marconi (1874-1937) was not the first one to come up with the idea of wireless telegraphy but was the first to succeed. He studied physics and became aware of the experiments of the German physicist Heinrich Hertz. Experimenting n 1894, Marconi was able to send radio signal up 1.5 miles. However, his experiments received little support in Italy, so he went to England in 1896. Forming a wireless telegraph company, he was able to send wireless transmissions further than 10 miles. He successfully sent a transmission across the English Channel in 1899. He also used two ships to report to New York newspapers on the America’s Cup yacht race using his wireless telegraph. That sparked a lot of interest about what he was doing.

On 12 December 1901, Marconi successfully transmitted the first transcontinental transmission from England to St. John’s Newfoundland. Many doubted this could be done due to the curvature of the earth, but Marconi believed otherwise. What scientists later determined was that the radio signal headed up to space and reflected off the ionosphere back down to Canada. Much would still have to be learned, but Marconi’s development of the wireless telegraph led to more radio discoveries down the road. It also meant ships at sea could receive messages sent to them via the wireless telegraph. Marconi’s company would soon market that to shipping companies as well (rivals would also as well). The radio would follow from this as well by the 1920’s with companies set up to deliver news, music and other information to the public who purchased radios in the home. Before the advent of television, people would gather around the radio for news and entertainment. And to listen to great play-by-play action of their favorite baseball team.

Marconi jointly received the Nobel Prize in physics with Ferdinand Braun, the German radio innovator. Marconi would continue to work on experimenting with shorter and more powerful radio waves. He died in 1937 and the BBC observed a two-minute moment of science for the man that was responsible for making what they do over the air possible.

Sources

Missy Sullivan, “First Radio Transmission Sent Across the Atlantic Ocean,” HISTORY, December 11, 2023, https://www.history.com/this-day-in-history/marconi-sends-first-atlantic-wireless-transmission.

Reginald Leslie Smith-Rose, “Guglielmo Marconi | Biography, Inventions, Radio, & Facts,” Encyclopedia Britannica, last modified November 6, 2024, https://www.britannica.com/biography/Guglielmo-Marconi.