Wireless Telegraphy is a method of communication that uses radio waves to transmit messages without the need for wires. It was developed in the late 19th century and allowed for long-distance communication, revolutionizing how information was shared. This technology paved the way for modern communication systems, including radio and television. The first successful use of wireless telegraphy was by Guglielmo Marconi, who sent the first transatlantic message in 1901. This innovation enabled ships at sea to communicate with land, improving safety and navigation. Wireless telegraphy laid the groundwork for the development of more advanced wireless technologies we use today.