There’s a reason we keep revisiting identity on WITHpod. From Brittney Cooper to Alex Wagner to Michael Tesler to Amy Chua and on, it’s a topic worth circling back to because it’s one of the most fundamental axes of conflict in our society today. Identities themselves are as old as we as a species are, but the concept of identity is relatively recent. Our ideas of identities are shifting and changing the more we learn about others. And sometimes, it can take full on social movements, protests, riots and bloodshed for new identities to become part of the conversation. Why is that? What do we mean when we say something is an "identity", or talk about "identity politics"? We take a step back with Kwame Anthony Appiah to examine the origins of the identities we use to define ourselves – and why it might be time to rethink our ideas of who we are. Email us at WITHpod@gmail.comTweet using #WITHpodRead more at nbcnews.com/whyisthishappeningRELATED READING:The Lies That Bind: Rethinking Identity by Kwame Anthony AppiahYOU MIGHT ALSO LIKE:The Personal is Political with Brittney Cooper (May 15)Political Tribalism with Amy Chua (June 12)Futureface with Alex Wagner (July 17)White Identity Politics with Michael Tesler (Oct 30)