Much of the archaeological heritage in what is now the State of Illinois is ancestral to Indigenous peoples forcibly removed from these lands and more recently to enslaved peoples forcibly brought to these lands. ISAS’s newest section, Collaborative Research Engagement, was created to better serve the descendant communities in Illinois through collaborative preservation, research, and promotion. Descendant communities include the many sovereign Tribal Nations whose ancestors lived in and shaped these lands since time immemorial, the descendants of the enslaved peoples and freed Black communities whose ancestors forged their lives here, and the descendants of other marginalized groups and disenfranchised communities. ISAS is committed to improving relationships, building equitable and reciprocal partnerships, and collaborating with descendant communities on the study, education, and protection of their cultural heritage in the state of Illinois.