imperfect, even though we confine ourselves to the scene of ancient history—Europe and the nations about the Mediterranean. We know not exactly the numbers of any European kingdom, or even city, at present; how can we pretend to calculate those of ancient cities and states where historians have left us such imperfect traces? For my part, the matter appears to me so uncertain that, as I intend to throw together some reflections on that head, I shall intermingle the inquiry concerning causes with that concerning facts, which ought never to be admitted where the facts can be ascertained with any tolerable assurance. We shall first consider whether it be probable, from what we know of the situation of society in both periods, that antiquity must have been more populous; secondly, whether in reality it was so. If I can make it appear that the conclusion is not so certain as is pretended in favour of antiquity, it is all I aspire to.
In general we may observe that the question with regard to the comparative populousness of ages or kingdoms implies very important consequences, and commonly determines concerning the preference of their whole police, their manners, and the constitution of their government. For as there is in all men, both male and female, a desire and power of generation more active than is ever universally exerted, the restraints which they lie under must proceed from some difficulties in their situation, which it belongs to a wise legislature carefully to observe and remove. Almost every man who thinks he can maintain a family will have one, and the human species at this rate of propagation would more than double every generation. How fast do {p110} mankind multiply in every colony or new settlement, where it is an easy matter to provide for a family, and where men are nowise straightened or confined as in long established governments? History tells us frequently of plagues which have swept away the third or fourth part of a people; yet in a generation or two the destruction was not perceived, and the society had again acquired their former number. The lands which were cultivated, the houses built, the commodities raised, the riches acquired, enabled the