The name is Pre-Cambrian era
The photo is blank ???? it’s just white
Answer:
Telegraph
Explanation:
Before the invention, information had to be send by horses, boats, trains, and any other transportation. This would take very long and it was ineffective for a lot of train stations. If a locomotive had to abort a departure than the communication would take a long time and it was usually by horses. After the telegraph was made this helped the train station be more effective by knowing exactly when the trains would go to which station. This made the stations much more smoother and have more departures and less waiting time for the people boarding on to them.
