A tax on voting is called a poll tax. It was a fee you paid to vote. On January 23, 1964, poll taxes were officially prohibited in the U.S.
I believe the answer is primary.
The largest empire of the early (pre-Columbian) American civilization was the Inca Empire. The Incas called their own empire Tawantinsuyo, meaning 'Land of the Four Quarters' or 'The Four Parts Together'.
A body of land surrounded by water on three sides is called a peninsula