Why did some areas remain unexplored in the americas?

What was herbert hoover and the food administration do in wwi?

What does the fall of the bastille represent? ?

In a modern democracy all elected officials serve for a certain number of terms then must retire a high school sophomore and a senior citizen may vote at the polls together a united states senator votes on immigration law on behalf of your mother through indirect ballot all democracies have a two chamber system of representation united states citizens live in a direct democracy