Why was south carolina placed under military control

The telegraph, the transatlantic telegraph cable, and the telephone were important to businesses after 1850 because of a. they created a system for developing new inventions. b. they filled a need that other inventions of the day could not. c. they attracted investors and created the stock market. d. they made picture-taking a popular american pastime.

Brainliestttme : )) -why do people commit acts of terrorism?

What was one of the advantages that the united states had over europe regarding the industrial revol the united states had a continuous supply of potential factory worker the united states imported workers from europe to work in factories. the workers in the united states were more skilled than the workers in europe the united states didn't actively participate in the industrial revolution. instead they imported most of their goods from other countries.