Samuel F.B. Morse was originally a painter, and a good one. His portraits still rank among the finest produced in the US. However, he is best remembered for having developed the telegraph and the code of dots and dashes that bears his name. In 1844, Morse demonstrated the practicability of his instrument to Congress by transmitting the famous message “What hath God wrought” over a wire from Washington, DC, to Baltimore. Morse was also instrumental in introducing what other innovation to the US? Discuss
Source: The Free Dictionary