Book excerpt: The New York Times bestselling author of How the Irish Saved Civilization reveals how the innovations of the Renaissance and the Reformation changed the Western world. • “Cahill is our king of popular historians.” —The Dallas Morning News This was an age in which whole continents and peoples were discovered. It was an era of sublime artistic and scientific adventure, but also of newly powerful princes and armies—and of unprecedented courage, as thousands refused to bow their heads to the religious pieties of the past. In these exquisitely written and lavishly illustrated pages, Cahill illuminates, as no one else can, the great gift-givers who shaped our history—those who left us a world more varied and complex, more awesome and delightful, more beautiful and strong than the one they had found.