My talk will be entitled "Law Professors Doing History and History Professors Doing Law." It will "extend and revise" (to borrow a phrase from the distinguished gentlepersons in Congress) the methodological reflections that appear in the Afterword of my book, the Bill of Rights: Creation and Reconstruction (Yale Univ Press 1998). I hope to discuss the debt we law professors owe to professional historians of the Founding and Reconstruction (Bernard and Bailyn, Gordon Wood, Pauline Maier, Herbert Storing, Eric Foner, and Les Benedict, to name just a few). Also, I hope to describe some of the things that professional historians, in turn, might learn from the work of law professors such as Bruce Ackerman, Michael Kent Curtis, and myself.