These indigenous civilizations are credited with many inventions: building pyramid-temples, mathematics, astronomy, medicine, writing, highly accurate calendars, fine arts, intensive agriculture, engineering, an abacus calculator, and complex theology.
Disse oprindelige civilisationer krediteres med mange opfindelser: byggeri af pyramidetempler, matematik, astronomi, lægevidenskab, skrivning, meget præcise kalendere, skønne kunster, intensivt landbrug, ingeniørvidenskab, en abacus kalkulator, og kompleks teologi.