The U.S. Constitution is among the oldest constitutions in the world but also one of the most difficult to amend. Jill Lepore, Harvard professor of history and law, explains why in We the People, the most original history of the Constitution in decades--and an essential companion to her landmark history of the United States, These Truths. Published on the occasion of the 250th anniversary of the nation's founding--the anniversary, too, of the first state constitutions--We the People offers a wholly new history of the Constitution. 'One of the Constitution's founding purposes was to prevent change,' Lepore writes. 'Another was to allow for change without violence.' Relying on the extraordinary database she has assembled at the Amendments Project, Lepore recounts centuries of attempts, mostly by ordinary Americans, to realize the promise of the Constitution. Yet nearly all those efforts have failed. Although nearly twelve thousand amendments have been introduced in Congress since 1789,