In the Scott v. Sandford case, Sandford's argument was based on the Missouri Compromise.
Psychology is the correct answer
The colonists realized that both women and men needed to be educated so they can have jobs and help with the well being of society. I hope this helps! :)
No "Americans" arrived in North America. However, in 10 A.D. Vikings explored the fringes of North America. Also, Native Americans crossed over from Siberia into Alaska over a land bridge about 12,000 years ago. In 1501, Amerigo Vespucci officially discovered America but thought it was Asia so he did not dock. Then in 1592, Christopher Columbus found and docked in the Caribbean and was the first man to land on America.