Why might the the descendant of Cahokia chosen to forget Cahokia?

The descendants of Cahokia may have chosen to forget their ancestral city due to a combination of cultural assimilation, trauma from colonial encounters, and the disruptions caused by European settlement. As new social and political structures emerged, the significance of Cahokia may have diminished, leading to a disconnection from its historical identity. Additionally, the loss of traditional practices and languages could contribute to a collective amnesia, as communities sought to adapt to changing circumstances while forging new identities.