How did the cold war affect the usa'economy positively

Why did leaders such as siddhartha gautama abandon hinduism to createbuddhism around 500 bce:

Where did zebulon pike spend most of his time exploring?

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.