LOOMIS DAYEach year on May 30th, Loomis Day recognizes the man who received the patent for wireless telegraphy in 1872. The Washington, D.C. dentist, Mahlon Loomis, received US patent number 129,971 titled “An Improvement in Telegraphing” on wireless telegraphy in July of 1872 beating Guglielmo Marconi’s United Kingdom patent by nearly 25 years.Learn more about Mahlon Loomis or the amazing history of the radio. Discover historic places and explore their significance to long-distance communication. While you tune into your favorite radio station or recall using a walkie-talkie, consider the long-range history.