Agrarian society, agriculture-oriented.

The Chinese civilization was also built on those plains.

The grain output of the Indochina Peninsula will certainly not be able to meet the needs of establishing a rule.

However, the appearance of potatoes can really alleviate this problem to a certain extent.

Another answer given by Zhang Yi is trade!

By sea, a part of the grain from Lingnan was sold in the Indochina Peninsula through transshipment1

"Da Ming: Dad, I'm no longer a teacher" Chapter 15 A bloody case is being hit by the hand, please wait a while,

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