Railroads were a major part of the industrial revolution as it was a more efficient way of getting around. It was also a driving force because it caused more investments into transportation
If tanks had not emerged, there might not have been so many causalities in wars and countries fighting would have maintained a good count of soldiers.
<u>Explanation:</u>
Tanks were first made use of in the First World War. The tanks could easily cross muddy battlefields and fire lethal weapons. This meant that several soldiers of an army died at any given time when a tank was used. Had tanks not been discovered, there would have been more peace in the world and the armies would not always be under constant fear of war.
By the next morning, Washington had a sore throat. His conditioned worsened and late in the evening on December 14, 1799, George Washington died of quinsy.
Slavery was fought over because president Abraham Lincoln wanted to unite the Union and Confederacy.