Why did people flock to the cities in the 1800s? what did cities have to offer?

In italy, the distance between milan in the north and palermo,sicily, in the south is about 550 miles. in the united states, the distance betweenboston, massachusetts, and savannah, georgia, is about 900 miles. do you think the american revolutionaries of 1776 in the 13 colonies faced some of the same challenges as the patriots who struggled for italian unity in the 1860s?  

How did cowboy culture reflect the ethnic diversity of the u.s.

According to the points given on the the frontier (line), when 25 million skateboards are produced, how many rollerblades can be produced?