Answer:
canals were built, primarily in the North
Answer:
The collapse of the Roman empire
Explanation:
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Answer:
It is used to create railroads.
Explanation:
Before the invention of railroads, the only method of travelling from one state to another is by using Caravans. This was very hard to do because it could took months for traders to reach other states by using horses.
The invention of railroads allowed people to reach states at a much faster time. It connected different areas in United States and made it easier for people to distribute their product to another states.
Answer:
During the U.S. Civil War, Cornelius Vanderbilt donated his largest and fastest steamship, named the Vanderbilt and built for around $1 million, to the Union Navy. The vessel was used to chase down Confederate raiders. In 1813, Vanderbilt married his cousin Sophia Johnson, and the couple eventually had 13 children.
To help discourage Soviet communist expansion, the United States built more atomic weaponry, The arms race has produced waste from such sources as the reactors that make the plutonium and tritium, the tailings from uranium mining, and other by-products from the nuclear weapons development process. As more nuclear weapons are removed, the safe storage of their warheads becomes increasingly more urgent
