ACTIVIDAD: Define los términos históricos.
Superareas culturales:
Nómada
Sedentario
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Which of the following inventions most directly allowed ancient farmers to produce a surplus ?

Which factor was a major cause of the great depression of the 1930?

Of those who attended the philadelphia convention, which of the following traits would be least likely to be found? a. many were highly educatedb. all were menc. many were from the urban centersd. many came from the western frontiers