These lake-dwelling people lived through hunting, fishing and primitive agriculture.

According to these, in 5000 BC these societies already had some level of primitive agriculture and cultivated maize.

It was in the Han Dynasty that primitive agriculture in this region had made a great progress.

He had taught the People primitive agriculture because he never grew to like one of their dietary staples, ground acorns.

However, it was not until the Neolithic Period that primitive agriculture appeared as a form of social activity, and domestication was well under way.

This book presents a "dynamic analysis embracing all types of primitive agriculture."

Partial answers to the question, why these early centers were so brittle, may lie in the effects of sustained drought on overstressed primitive agriculture.

Far from being content with the prospect of a society based on primitive agriculture they were becoming ever more deeply committed to economic development and efficiency.

Over 90% of the Belt's tribal population is rural, with primitive agriculture.

In the spreading areas of primitive agriculture, it forgot its intricate and colossal past.