In which decade was the telegraph invented?

A. 1810s

B. 1840s

C. 1870s

D. 1890s

Answer: Option B

Solution(By Examveda Team)

The system was completed and public use initiated on May 24, 1844, with transmission of the message, “What hath God wrought!” This inaugurated the telegraph era in the United States, which was to last more than 100 years. Key-type Morse telegraph transmitter from the 1840s. Morse telegraph register from the 1840s.