Immigrants desired to come to the United States in order to obtain better job opportunities, and escape ongoing wars in their homeland. (Might not be the best, just kinda thought of it on the spot)
Here gives the medal of freedom and faught against racism
The great ancient civilizations flourished around river valleys because the rivers produce rich fertile soil and a supply of water for irrigation of crops and human consumption. This allows for the agricultural production to be greater and it can sustain more people.
