By: Harmanpreet Singh
Important Dates of the Invention
The telegraph was made in 1837 in the United States. The later on the telegraph was innovated to the telephone( March 10,1837) by Alexander Grahman Bell. Morse had offered to the sell the telephone to the US government for $100,000, but, the postmaster general rejected the offer. The telegraph became widely used in the 1830s-1840s.