There can be no doubt that the fall of Buddhism in India was due to the invasions of the Musalmans. Islam came out as the enemy of the 'But'. The word 'But' as everybody knows, is the Arabic word and means an idol. Thus the origin of the word indicates that in the Moslem mind idol worship had come to be identified with the Religion of the Buddha. To the Muslims, they were one and the same thing. The mission to break the idols thus became the mission to destroy Buddhism. Islam destroyed Buddhism not only in India but wherever it went. Before Islam came into being Buddhism was the religion of Bactria, Parthia, Afghanistan, Gandhar, and Chinese Turkestan, as it was of the whole of Asia. In all these countries Islam destroyed Buddhism.