Which best describes Henry Clay’s American System? It placed tariffs on Southern goods to benefit people in the North.
It placed tariffs on foreign imports to build roads and infrastructure.
It was a compromise that brought the nullification crisis to an end.
It lowered prices for imports, which became cheaper than American goods.

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.

It may be written down (as in the united states) or it may be unwritten (as in great britain). this is the 1787 meeting at which the  constitution of the united states  was debated and agreed upon. this was a 1787 meeting called by congress to amend the articles of the confederation.