ITALIANS HAD BEEN book-hunting for the better part of a century, ever since the poet and scholar Petrarch brought glory on himself in the 1330s by piecing together Livy’s monumental History of Rome and finding forgotten masterpieces by Cicero, Propertius, and others. Petrarch’s achievement had inspired others to seek out lost classics that had been lying unread, often for centuries. The recovered texts were copied, edited, commented upon, and eagerly exchanged, conferring distinction on those who had found them and forming the basis for what became known as the “study of the humanities.”