In a time when hate crimes are common and conspicuous, the author of And Man Created God asks whether tolerance can be expected to heal today's breach between Islam and the post-Christian West, or whether something deeper than an uneasy peace is needed. Surveying the intertwined histories of the monotheistic religions, Selina O'Grady draws new conclusions from the stories of Umar, the 7th century Islamic caliph who presided over the largest empire the world has ever known; Magna Carta signer King John, who almost converted to Islam; Ibn Abd al-Wahhab, who created the religious-military alliance with the House of Saud that still survives today; and the bloody Thirty Years' War, which cured Europe of murderous intra-Christian violence.