Language would probably have continued upon this footing in all countries, nor would ever have grown more simple in its declensions and conjugations, had it not become more complex in its composition, in consequence of the mixture of several languages with one another, occasioned by the mixture of different nations. As long as any language was spoke by those only who learned it in their infancy, the intricacy of its declensions and conjugations could occasion no great embarrassment. The far greater part of those who had occasion to speak it, had acquired it at so very early a period of their lives, so insensibly and by such slow degrees, that they were scarce ever sensible of the difficulty. But when two nations came to be mixed with one another, either by conquest or migration, the case would be very different. Each nation, in order to make itself intelligible to those with whom it was under the necessity of conversing, would be obliged to learn the language of the other. The greater part of individuals too, learning the new language, not by art, or by remounting to its rudiments and first principles, but by rote, and by what they commonly heard in conversation, would be extremely perplexed by the intricacy of its declensions and conjugations. They would endeavour, therefore, to supply their ignorance of these, by whatever shift the language could afford them. Their ignorance of the declensions they would naturally supply by the use of prepositions; and a Lombard, who was attempting to speak Latin, and wanted to express that such a person was a citizen of Rome, or a benefactor to Rome, if he happened not to be acquainted with the genitive and dative cases of the word _Roma_, would naturally express himself by prefixing the prepositions _ad_ and _de_ to the nominative; and, instead of _Romæ_, would say, _ad Roma_, and _de Roma_. _Al Roma_ and _di Roma_, accordingly, is the manner in which the present Italians, the descendants of the ancient Lombards and Romans, express this and all other similar relations. And in this manner prepositions seem to have been introduced, in the room of the ancient declensions. The same alteration has, I am informed, been produced upon the Greek language, since the taking of Constantinople by the Turks. The words are, in a great measure, the same as before; but the grammar is entirely lost, prepositions having come in the place of the old declensions. This change is undoubtedly a simplification of the language, in point of rudiments and principle. It introduces, instead of a great variety of declensions, one universal declension, which is the same in every word, of whatever gender, number, or termination.