Also read receive telemarketing service quotes India Commerce While Constantinople was thus rivalling the cities of Italy, a new revolution took place there, which overturned the Greek empire, and established that of the Ottomans. The depot of India commerce being in the Crimea, which is near the mouth of the Wolga, is a strong reason for believing the trade was carried on through the Caspian Sea; but it has been asserted, that the chief route was directly by land from the Tigris to the Black Sea. This seems a very good way; but, in that case, why cross the Black Sea to go to the Crimea? Any one who looks at the map will be able to judge that as being very unlikely. Doctor Robertson, however, has taken no notice of this difficulty. Two things are certain: that the depot was in the Crimea, and that merchants never go out of their road without having some cause for doing it. The reader must then determine for himself. Before the Genoese were expelled, their insolence and avarice had time to display themselves in their full extent; about the year thirteen hundred and forty, says an eye-witness, they dreamed that they had acquired the dominion of the sea, and claimed an exclusive right to the trade of the Euxine, prohibiting the Greeks to sail to the Chersonesus, or any part beyond the mouth of the Danube, without a licence from them. The Venetians were not excepted, and the arrogance of the Genoese went so far as to form a scheme for imposing a toll on every vessel passing through the Bosphorous. When Mahomet II. mounted the throne, the Genoese were expelled from Pera, and Venice regained the preponderance in eastern commerce, which she maintained, till the discovery of the passage by the Cape of Good Hope, which opened a new channel, more certain, much less expensive, and not so liable to interruption from the revolutions that nations are liable to. It is deserving of observation, that whatever alterations took place in the channel through which the India trade was carried on, whatever were the vicissitudes or the difficulties, the trade itself never was suspended; so great was the propensity of those who were affluent in the West, to enjoy the productions of the East. The vicissitudes of this eastern commerce were thus very great in former times. The wealth and arrogance which the possession of it produced, and the envy it excited, may, in general, be ascribed as the cause; indeed it is not certain whether the envy of the Genoese, at the success of the Venetians, did not make them, in an underhand manner, favour those attempts to find out a new channel which might destroy the prosperity of a haughty and successful rival. Whether it was so or not, it is certain that the discovery of the passage by the Cape of Good Hope was not accidental; but that the Portuguese were induced to listen to the proposal of trading to India by that route, under the certainty of rivalling the greatest commercial city of the world, if she should succeed. Though no new channel can now be expected, and the present one is every day becoming more easy and frequented, yet the capricious shiftings of the India trade were not ended by this new discovery. The prices of Asiatic produce were exorbitant. Silk was sold for its weight in gold; and a Roman emperor refused his empress the luxury, or rather the splendour, of a silk gown.