Tangled Roots is a research project about the shared history of African Americans and Irish Americans. [...] With the support of the Gilder Lehrman Center, the Tangled Roots project seeks to investigate the history of American slaves and immigrants from Ireland and to consider the links between them. A collection of primary documents from the 17th century to the present provides portraits of people and events from the history of African and Irish Americans. The objective of the project is to foster an understanding of the tangled roots of the shared history. The project is dedicated to an understanding of race and ethnicity in America.