Why do many social scientists refer to the united states as the american mosaic?

Counterculture is mainly driven by the youth because

What was the earliest settlement shown on the map?

What role did mazzini play in italian unification? a.) he dreamed of a united italy and took the first steps to achieving it. b.) he conquered the southern part of italy, including sicily. c.) he was the first leader of a united italy. d.) he was assassinated by the french government, making him a martyr.