Which was one strategy the aztecs used to expand their empire

How did charles v and philip ii expand the spanish state? they united separate spanish kingdoms into a unified state. they supported protestant rebels in the netherlands. they carried on a successful war against britain. they fought wars and tried to expand catholicism.

Why did the 24th amendment and the civil rights act succeed when other legislation had failed?

Aside from low birthrates and high death rates, what can cause a country’s population to decline