What two things do historians do to support or refute thesis statements

A thesis statement is a part of the introductory paragraph of an essay. It is also called a map statement because it should tell the read where your paper is going and what it is going to cover

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.