
The story is divided into three sections, spanning 1800 years of future history after a nuclear war destroys our own culture. The events occur within a monastery established by a long-deceased martyr named Liebowitz, who founded the monastery to protect the written records of the past civilization from those who would seek to destroy it. The monks studiously preserved charred remains of books and blueprints, but with little idea of the knowledge they contained. The three sections of the book roughly follow our own history (hitting a theme of Miller’s: the circularity of history), from the protection of knowledge after the fall of Rome , to the Renaissance, and finally to the rise of a technological civilization.