There’s a fable I often heard growing up, about a Mennonite man (or Amish or Brethren, depending on where the story is being told) who was asked whether he was a Christian. His response: “Ask my neighbors.” The story encapsulates a certain historicist impulse in the Anabaptist tradition: the commitments we claim matter less than the commitments we embody. I first learned to care about the history of my community for just that reason. We learn who we are by considering honestly how we have lived.