What were three important influences on the growth of democracy in america

I believe the answer is: England, Ancient Rome, Ancient Greece.

Democracy initially come from ancient greece, but they use direct democracy, where people could directly vote for the legislations. The ancient Rome was the first one that make adjustment to the direct democracy and transform it into indirect democracy. England is the one that bring the concept to united states during the colonization.

that would be the steamboat because none of the other things are forms of transportation

the western roman empire flourished, but the eastern portion of the empire struggled.