By the 1840s, a communications revolution had been triggered by the development of the:
A) telephone
B) telegraph
C) Pony Express
D) railroad
E) post office

Question

Quizplus · Accepted Answer

The telegraph, invented by Samuel Morse in 1837, revolutionized communication by allowing messages to be sent quickly over long distances using a code of dots and dashes. This led to the creation of telegraph lines that crisscrossed the country, connecting businesses and individuals in ways previously impossible.

By the 1840s, a Communications Revolution Had Been Triggered by the Development