Carnegie used his money to build libraries both in the U.S.
as well as other countries so that people would benefit from others in terms of
knowledge. He also helped establish
schools so that more people will have access to education.
Generally speaking, from the 1830s on, people hoping to settle in the Northwest "B-traveled along the Oregon Trail," since this had become a well-established route.
1. is b
i belive the second one is b
3 is d
and 4 is c
