One of the first objects of an inquirer, who wishes to form a correct notion of the state of a community at a given time, must be to ascertain of how many persons that community then consisted. Unfortunately the population of England in 1685, cannot be ascertained with perfect accuracy. For no great state had then adopted the wise course of periodically numbering the people. All men were left to conjecture for themselves; and, as they generally conjectured without examining facts, and under the influence of strong passions and prejudices, their guesses were often ludicrously absurd. Even intelligent Londoners ordinarily talked of London as containing several millions of souls. It was confidently asserted by many that, during the thirty-five years which had elapsed between the accession of Charles the First and the Restoration the population of the City had increased by two millions. [27] Even while the ravages of the plague and fire were recent, it was the fashion to say that the capital still had a million and a half of inhabitants. [28] Some persons, disgusted by these exaggerations, ran violently into the opposite extreme. Thus Isaac Vossius, a man of undoubted parts and learning, strenuously maintained that there were only two millions of human beings in England, Scotland, and Ireland taken together. [29]
We are not, however, left without the means of correcting the wild blunders into which some minds were hurried by national vanity and others by a morbid love of paradox. There are extant three computations which seem to be entitled to peculiar attention. They are entirely independent of each other: they proceed on different principles; and yet there is little difference in the results.
One of these computations was made in the year 1696 by Gregory King, Lancaster herald, a political arithmetician of great acuteness and judgment. The basis of his calculations was the number of houses returned in 1690 by the officers who made the last collection of the hearth money. The conclusion at which he arrived was that the population of England was nearly five millions and a half. [30]
About the same time King William the Third was desirous to ascertain the comparative strength of the religious sects into which the community was divided. An inquiry was instituted; and reports were laid before him from all the dioceses of the realm. According to these reports the number of his English subjects must have been about five million two hundred thousand. [31]