At the end of the civil war, what communications system did the railroads use to coordinate their complex flow of rail cars? (ch. 18)

At the end of the Civil War, the communication system that the railroad used to coordinate their complex flow of rail cars is through the telegraph. This is used for transmitting messages with the use of a wire in which is a way of making signals in means of breaking and making an electrical connection.

good morning!

answer: francis bacon is well known for being the secont man to sail around the world. sir francis drake was the first englishman to sail around the world.

have a great day!