That region has been known by the following names:
They did not develop a written language. The Inca communicated through a system of knots called quipu.
Early civilizations were characterized by the development of complex social hierarchies, urban centers, agriculture-based economies, written language, and formalized systems of government and religion. These features distinguished them from the more mobile and egalitarian nature of hunter-gatherer communities.
they're language is very different. the incas had a written language when the Mayas didnt. they were two different tribes and they lived in different places even thou they met in Mexico at least once
People in the Stone Age communicated with each other using a combination of verbal language, gestures, and possibly sign language. They also likely used symbols, drawings, and possibly early forms of written language to convey information and ideas. Communication would have been essential for coordinating activities such as hunting, gathering, and community living.
The period before records were written or passed orally is often referred to as prehistory. This era encompasses the time before written language was developed and relied on archaeological evidence to understand human societies and cultures. It varies by region but generally extends from the emergence of the earliest human ancestors to the invention of writing systems.
APEX: The development of the written Mongol language
Graham Nerlich, an Australian philosopher, has written works on logic, philosophy of language, and metaphysics. Some of his notable books include "What Spacetime Explains" and "Resemblance and Disjunction: Explorations in the Philosophy of Language."
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Knut M. Pelzer has written: 'Agriculture' -- subject(s): Agriculture, Agriculture and state, Economic aspects of Agriculture, Produce trade
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Rudolph Kool has written: 'Tropical agriculture and economic development' -- subject(s): Agriculture, Economic aspects of Agriculture