To this monarch also (in 628) came messengers from Muhammad. They came to Canton on a trading ship. They had sailed the whole way from Arabia along the Indian coasts. Unlike Heraclius and Kavadh, Tai-Tsung gave these envoys a courteous hearing. He expressed his interest in their theological ideas and assisted them to build a mosque in Canton, a mosque which survives, it is said, to this day, the oldest mosque in the world. XLIII MUHAMMAD AND ISLAM A prophetic amateur of history surveying the world in the opening of the seventh century might have concluded very reasonably that it was only a question of a few centuries before the whole of Europe and Asia fell under Mongolian domination. There were no signs of order or union in Western Europe, and the Byzantine and Persian Empires were manifestly bent upon a mutual destruction. India also was divided and wasted. On the other hand China was a steadily expanding empire which probably at that time exceeded all Europe in population, and the Turkish people who were growing to power in Central Asia were disposed to work in accord with China. And such a prophecy would not have been an altogether vain one. A time was to come in the thirteenth century when a Mongolian overlord would rule from the Danube to the Pacific, and Turkish dynasties were destined to reign over the entire Byzantine and Persian Empires, over Egypt and most of India. Where our prophet would have been most likely to have erred would have been in under-estimating the recuperative power of the Latin end of Europe and in ignoring the latent forces of the Arabian desert. Arabia would have seemed what it had been for times immemorial, the refuge of small and bickering nomadic tribes. No Semitic people had founded an empire now for more than a thousand years. Then suddenly the Bedouin flared out for a brief century of splendour. They spread their rule and language from Spain to the boundaries of China. They gave the world a new culture. They created a religion that is still to this day one of the most vital forces in the world. The man who fired this Arab flame appears first in history as the young husband of the widow of a rich merchant of the town of Mecca, named Muhammad. Until he was forty he did very little to distinguish himself in the world. He seems to have taken considerable interest in religious discussion. Mecca was a pagan city at that time worshipping in particular a black stone, the Kaaba, of great repute throughout all Arabia and a centre of pilgrimages; but there were great numbers of Jews in the country—indeed all the southern portion of Arabia professed the Jewish faith—and there were Christian churches in Syria.