Existing comment:
Part of a telegraph patent model
1846
Samuel F. B. Morse's modification for a telegraph receiver
Along with the spread of transportation networks, the invention and commercial application of the telegraph helped stimulate economic growth in the United States by connecting far-flung markets. Samuel Morse opened the first telegraph line in 1844. Less than a decade later telegraph wires crisscrossed the country, allowing business to be conducted more quickly and profitably. |