How the Irish Saved Civilization by Thomas Cahill (Author)

Every year millions of Americans celebrate St. Patrick's Day, but they may not be aware of how great an influence St. Patrick was on the subsequent history of civilization. Not only did he bring Christianity to Ireland, he instilled a sense of literacy and learning that would create the conditions that allowed Ireland to become "the isle of saints and scholars"—and thus preserve Western culture while Europe was being overrun by barbarians.