Question

Which of the following innovations was developed by both the Aztecs and Maya?

A.
the mathematical concept of zero
B.
a base 20 number system
C.
a 365-day calendar
D.
counting knots called quipu

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct answer is C. a 365-day calendar. Both the Aztecs and the Maya developed and utilized a 365-day calendar system.