How were the iroquois, yoruba, igbo, bini people similar to the earlier agricultural civilizations?

The iroquois, yoruba, igbo, bini people were similar to the earlier agricultural civilizations in the agricultural techniques they used. They adopted maize and bean-farming techniques from Mesoamerica.
Also they lived is small village-based community organized in terms of kinship relations and avoided incorporation into larger empires/civ.s