In the 1800's Why did the courts favor Americans over immigrants?

people in many parts of the world decided to leave their homes and immigrate to the United States. Fleeing crop failure, land and job shortages, rising taxes, and famine, many came to the U. S. because it was perceived as the land of economic opportunity.

Explanation:

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.