Where did the majority of Indians come from? How did they get here?

Upheld the 1st amendment according to the u.s constitution. freedom of speech being limited in this case yes national emergencies

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.