Charles Benedict Calvert telegraph, Samuel Morse and Alfred Vail. On April 9, 1844, Morse and Vail successfully tested their device by transmitting a message from the nation's capital to the Calvert home, Riversdale. This test came 45 days before the more celebrated event when Morse sent the message "What hath God wrought?" from Washington to Baltimore, along telegraph lines that ran above the Baltimore and Ohio Railroad line near Riversdale. Calvert became president of the Prince George's County, Maryland Agricultural Society and the Maryland State Agricultural Society, and served as vice president of the United States Pomological Society. He founded the first agricultural
Morse Message (1962) Morse Message (1962) In 1962 a radio message in Morse code was transmitted from the Evpatoria Planetary Radar (EPR) and directed to the planet Venus. The word “MIR” (, meaning both “peace” and “world”) was transmitted from the EPR on November 19, 1962, and the words “LENIN” () and “SSSR” (, the abbreviation for the Soviet Union — ) on November 24, 1962, respectively. All three words were sent using the Morse code. In Russian, this letter is called Radio Message “MIR, LENIN, SSSR”. This message was the first radio broadcast for extraterrestrial civilizations in the history of mankind. It