Delhi is the Musulman capital of India. What Benares and Patna and Gaya were and are to the Brahman and Buddhist civilisations native to India, what Calcutta and Madras and Bombay and Karachi are to the English from over the seas, that are Delhi and Agra to the Musulmans entering India from the northwest. The Musulmans were not the first to come this way into India. The oldest of the sacred books of the Hindus tell of a people who came from the northwest and apparently founded the Hindu religion, accepting no doubt some of the religious beliefs of the earlier, the Dravidian, population. From these Aryan invaders, speaking Sanskrit, have been derived the languages of the peoples of Northern India. Southeastward, southward, and southwestward from Delhi as far as the centre of India, there spread the Hindi, Bengali, and Marathi languages, as evidence of the effective conquest made by those remote invaders entering through the Delhi passage between the desert and the mountains. So far, however, as their language was concerned, they failed to establish themselves in the Dravidian south. Long afterwards, but still some three hundred years before the Christian era, the Greeks under Alexander the Great traversed Persia and Turkestan and came over the Hindu Kush, the mountain backbone of what is now Afghanistan, down into the plains of the Punjab. Alexander advanced across the rivers of the Punjab, tributary to the Indus, apparently as far as the Sutlej, and then turned southward and followed the Indus to its mouth. Part of his troops returned through the Persian Gulf on board the fleet, and part he led back with great loss along the barren northern shore of the Arabian Sea. Alexander and the Greeks came therefore to the very threshold of India, and then turned aside towards the sea, leaving the desert of Rajputana between them and the great prize of the conqueror. In the seventh century of the Christian era there arose in Arabia the prophet Muhammad, who in his youth had been influenced both by Christian and Hebrew teaching. He preached to the Arabs that there was but one God, and that Muhammad was his prophet. Muhammad, “The Praised,” was born in Mecca, about the year 570. He belonged to one of the ruling families of the tribe of Arabs who held Mecca and the surrounding country, but his father died before he was born, and his mother when he was only six months old. From his earliest youth Muhammad was addicted to solitude and musing. In his wanderings he visited Syria, and in a Nestorian convent there learned many of the Hebrew and Christian ideas which he subsequently incorporated into his teaching. In his twenty-fifth year he married Khadija, a widow of noble birth and considerable wealth. This marriage placed him in a position of independence, for he had previously been very poor.