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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.","forthcoming":false,"isbn13":"9780385495585","publication_date":"20140812","publisher":"Knopf Doubleday Publishing Group","slug":"heretics-and-heroes","subtitle":"How Renaissance Artists and Reformation Priests Created Our World","title":"Heretics and Heroes"},"discovery":{"categories":{"all":[{"bisac_code":"HIS037020","confidence_band":"high","label":"Renaissance History","score":0.8205,"source":"bisac_hint_model"},{"bisac_code":"ART015080","confidence_band":"medium","label":"Renaissance Art History","score":0.7752,"source":"bisac_hint_model"},{"bisac_code":"HIS010020","confidence_band":"medium","label":"Western European History","score":0.7734,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"HIS037020","confidence_band":"high","label":"Renaissance History","score":0.8205,"source":"bisac_hint_model"},{"bisac_code":"ART015080","confidence_band":"medium","label":"Renaissance Art History","score":0.7752,"source":"bisac_hint_model"},{"bisac_code":"HIS010020","confidence_band":"medium","label":"Western European History","score":0.7734,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"ART015080","confidence_band":"high","label":"Renaissance Art History","score":1,"source":"onix_publisher_code"},{"bisac_code":"HIS010020","confidence_band":"high","label":"Western European History","score":1,"source":"onix_publisher_code"},{"bisac_code":"HIS037020","confidence_band":"high","label":"Renaissance History","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Renaissance History","score":0.8205,"slug":"renaissance-history"},{"label":"Renaissance Art History","score":0.7752,"slug":"renaissance-art-history"},{"label":"Western European History","score":0.7734,"slug":"western-european-history"}],"reader_fit":["Good for readers who enjoy Renaissance History","Good for readers interested in christian","Good for fans of History"],"related_lists":[{"intro":"","slug":"shelf-his037020-renaissance-history","title":"Renaissance History Books","url":"https://bookfrontier.com/lists/shelf-his037020-renaissance-history"}],"series":null,"similar_books":[{"authors":["Paul Strathern"],"book_id":"9780553386141","cover_image_url":"https://img.bookfrontier.com/9780553386141.jpg?v=20260417T204117Z-pairingsrefresh%3A2026-04-17T20%3A41%3A17Z","score":15.9874,"title":"The Artist, the Philosopher, and the Warrior","url":"https://bookfrontier.com/books/9780553386141"},{"authors":["James A. 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