The First Telegraph

Alfred Vail receives and Samuel Morse’s telegraph message, “What hath God wrought.” The message was transmitted from the U.S. Supreme Court room to the Mount Clare Station of the B&O Railroad in Baltimore, Maryland. Vail then transmitted the message back to Morse. May 24, 1844. | Location: Mount Clare Station, B&O Railroad, Baltimore, Maryland, USA. (Photo by Library of Congress/Corbis/VCG via Getty Images)