Then, again, look at their early history. Their Mongol-Turkish ancestors were driven westward because they made Mongolia too hot for them, and we hear of Turks smelting iron for their Mongol masters in what is now Eastern Turkestan until they threw off the Mongol yoke in A.D. 552, when Turkish history begins. At the dawn of Islam (A.D. 632) Turks and Mongols were harrying each other all over the Caspian countries like rival wolf-packs, sometimes combining for a raid on their neighbours and then fighting over the loot. That is why you find racial Turks in such outlandish places as Merv, Khiva, Samarcand, Bokhara and Cabul, for the Turkish race is not confined to Asia Minor and Turkey in Europe, but is scattered over parts of Russia and China and Afghanistan. Now to consider the Ottoman Turks, with whom we are chiefly concerned. They were superior to their Mongol fellow-wolves in that they could smelt iron and had some idea of constructive enterprise. They had also adopted Islam, which was a great advance from the Shamanistic wizardry and totem-worship they used to practise, and their contact with the Arabs who raided them and afterwards accepted their military service to the Caliphate had civilised them considerably. Their Seljouk cousins were already ruling in Asia Minor, whither they had been driven by the Mongols when a wandering Turkish band sought similar asylum there in the earlier part of the thirteenth century and intervened most opportunely to help the Seljouks repulse a Mongol raid; in return, the Seljouk Emperor gave them a grant of land in Bithynia. In 1300 the Seljouk Empire was finally smashed by the Mongols, who withdrew eastward without occupying the country, for they were merely predatory and destructive and had no gift or desire for permanent colonisation. So it came about that the Ottoman Empire began in 1326 under Othman I in Bithynia and grew by absorption and lack of effective opposition until, in 1517, we find it spreading under Selim I (the Magnificent) to the gates of Vienna and extending from Germany to Persia and from Arabia to the Atlantic. The benign sun of the Arabian Caliphate, under which learning and industry flourished securely, had long since set in blood under circumstances of treachery and murder which have hardly been surpassed even in the late war.