The cultural and political history of the Pledge of Allegiance, how it came to be, what it means to Americans, and why we have battled over it for generations

For more than a century, reciting the Pledge of Allegiance has been a central part of the American Experience. And perhaps because of its ubiquity, this simple flag salute has served not only as a unifying ritual but also as a lightning rod for bitter controversy.

Congress's 1954 decision to add "under God" to the Pledge has made it the focus of three U.S. Supreme Court cases and at least one other landmark...