Numeric notation and a vigesimal numerical system, based on multiples of twenty (Chibcha: gueta) used by the Muisca, one of the four advanced civilizations of the Americas before the Spanish conquest
numeric notation and a vigesimal numerical system, based on multiples of twenty (Chibcha: gueta) used by the Muisca, one of the four advanced civilizations of the Americas before the Spanish conquest (en)