Why did many immigrants choose to live in the cities as they entered to the united states in the late 1800's or early 1900's?

The inventor cocreated the film fred arts sneeze which was one of the first american movies

Why did china build the great wall of china?

What are the vedas? a. regions ruled by a vedic king b. a group of female hindu saints c. a tribe native to north india d. a collection of ancient hindu scriptures e. the autobiography of a saint