It was founded upon the marriage of one man with one woman, with an exclusive cohabitation; the latter constituting the essential element of the institution. It is pre-eminently the family of civilized society, and was therefore essentially modern. This form of the family also created an independent system of consanguinity.

Evidence will elsewhere be produced tending to show both the existence and the general prevalence of these several forms of the family at different stages of human progress.


CHAPTER III. - RATIO OF HUMAN PROGRESS.

Retrospect on the Lines of Human Progress.—Principal Contributions of Modern Civilization.—Of Ancient Civilization.—Of Later Period of Barbarism.—Of Middle Period.—Of Older Period.—Of Period of Savagery.—Humble Condition of Primitive Man.—Human Progress in a Geometrical Ratio.—Relative Length of Ethnical Periods.—Appearance of Semitic and Aryan Families.

It is well to obtain an impression of the relative amount and of the ratio of human progress in the several ethnical periods named, by grouping together the achievements of each, and comparing them with each other as distinct classes of facts. This will also enable us to form some conception of the relative duration of these periods. To render it forcible, such a survey must be general, and in the nature of a recapitulation. It should, likewise, be limited to the principal works of each period.

Before man could have attained to the civilized state it was necessary that he should gain all the elements of civilization. This implies an amazing change of condition, first from a primitive savage to a barbarian of the lowest type, and then from the latter to a Greek of the Homeric period, or to a Hebrew of the time of Abraham. The progressive development which history records in the period of civilization was not less true of man in each of the previous periods.

By re-ascending along the several lines of human progress toward the primitive ages of man’s existence, and removing one by one his principal institutions, inventions and discoveries, in the order in which they have appeared, the advance made in each period will be realized.

The principal contributions of modern civilization are the electric telegraph; coal gas; the spinning-jenny; and the power loom; the steam-engine with its numerous dependent machines, including the locomotive, the railway, and the steam-ship; the telescope; the discovery of the ponderability of the atmosphere and of the solar system; the art of printing; the canal lock; the mariner’s compass; and gunpowder. The mass of other inventions, such, for example, as the Ericsson propeller, will be found to hinge upon one or another of those named as antecedents: but there are exceptions, as photography, and numerous machines not necessary to be noticed. With these also should be removed the modern sciences; religious freedom and the common schools; representative democracy; constitutional monarchy with parliaments; the feudal kingdom; modern privileged classes; international, statute and common law.