Before being displaced by maize agriculture, little barley may have been domesticated.

The Monongahela practiced maize agriculture, and lived in well laid out villages, some of which consisted of as many as 50-100 structures.

By 1200 the numerous villages, hamlets, and farmsteads established throughout the Caddo world had begun extensive maize agriculture.

Adoption of maize agriculture.

The success of maize agriculture was to such an extent that the region eventually gained the moniker "The Breadbasket of Zambia."

Around 800CE, Eastern Algonquians adopted maize agriculture from their neighbors in the interior.

Like other groups, their adoption of maize agriculture had let them develop a large population.

This period is when extensive maize agriculture is adopted.

At this stage, they had an economy mainly based on llama breeding and maize agriculture.

During the early Late Woodland period (350-750 CE), maize agriculture is rare.