The Koyúkuns believe that a youth who marries before he has killed a deer will have no children.[79] The aborigines of Pennsylvania considered it a shame for a boy to think of a wife before having given some proof of his manhood.[80] Among the wild Indians of British Guiana, says Mr. Im Thurn, before a man is allowed to choose a wife he must prove that he can do a man’s work and is able to support himself and his family.[81] Among the Dyaks of Borneo,[82] the Nagas of Upper Assam,[83] and the Alfura of Ceram,[84] no one can marry unless he has in his possession a certain number of heads. The Karmanians, according to Strabo, were considered marriageable only after having killed an enemy.[85] The desire of a Galla warrior is to deprive the enemy of his genitals, the possession of such a trophy being a necessary preliminary to marriage.[86] Among the Bechuana and Kafir tribes south of the Zambesi, the youth is not allowed to take a wife until he has killed a rhinoceros.[87] In the Marianne Group, the suitor had to give proof of his bodily strength and skill.[88] And among the Arabs of Upper Egypt, the man must undergo an ordeal of whipping by the relations of his bride in order to test his courage. If he wishes to be considered worth having, he must receive the chastisement, which is sometimes exceedingly severe, with an expression of enjoyment.[89]

The idea that a man is bound to maintain his family is, indeed, so closely connected with that of marriage and fatherhood, that sometimes even repudiated wives with their children are, at least to a certain extent, supported by their former husbands. This is the case among the Chukchi of North-Western Asia,[90] the Basutos in Southern Africa,[91] and the Munda Kols in Chota Nagpore.[92] Further, a wife frequently enjoys her husband’s protection even after sexual relations have been broken off. And upon his death, the obligation of maintaining her and her children devolves on his heirs, the wide-spread custom of a man marrying the widow of his deceased brother being, as we shall see in a subsequent chapter, not only a privilege belonging to the man, but, among several peoples, even a duty. We may thus take for granted that in the human race, at least at its present stage, the father has to perform the same function as in other animal species, where the connections between the sexes last longer than the sexual desire.


In encyclopedical and philosophical works we meet with several different definitions of the word marriage. Most of these definitions are, however, of a merely juridical or ethical nature, comprehending either what is required to make the union legal,[93] or what, in the eye of an idealist, the union ought to be.[94] But it is scarcely necessary to say how far I am here from using the word in either of these senses. It is the natural history of human marriage that is the object of this treatise; and, from a scientific point of view, I think there is but one definition which may claim to be generally admitted, that, namely, according to which marriage is nothing else than a more or less durable connection between male and female, lasting beyond the mere act of propagation till after the birth of the offspring. This definition is wide enough to include all others hitherto given, and narrow enough to exclude those wholly loose connections which by usage are never honoured with the name of marriage. It implies not only sexual relations, but also living together, as is set forth in the proverb of the Middle Ages, “Boire, manger, coucher ensemble est mariage, ce me semble.”[95] And, though, rather vague, which is a matter of course, it has the advantage of comprehending in one notion phenomena essentially similar and having a common origin.

Thus, as appears from the preceding investigation, the first traces of marriage are found among the Chelonia. With the Birds it is an almost universal institution, whilst, among the Mammals, it is restricted to certain species only. We observed, however, that it occurs, as a rule, among the monkeys, especially the anthropomorphous apes as well as in the races of men. Is it probable, then, that marriage was transmitted to man from some ape-like ancestor, and that there never was a time when it did not occur in the human race? These questions cannot be answered before we have found out the cause to which it owes its origin.

It is obvious that where the generative power is restricted to a certain season, it cannot be the sexual instinct that keeps male and female together for months or years. Nor is there any other egoistic motive that could probably account for this habit. Considering that the union lasts till after the birth of the offspring, and considering the care taken of this by the father, we may assume that the prolonged union of the sexes is, in some way or other connected with parental duties. I am, indeed, strongly of opinion that the tie which joins male and female is an instinct developed through the powerful influence of natural selection. It is evident that, when the father helps to protect the offspring, the species is better able to subsist in the struggle for existence than it would be if this obligation entirely devolved on the mother. Paternal affection and the instinct which causes male and female to form somewhat durable alliances, are thus useful mental dispositions which, in all probability, have been acquired through the survival of the fittest.

But how, then, can it be that among most animals the father never concerns himself about his progeny? The answer is not difficult to find. Marriage is only one of many means by which a species is enabled to subsist. Where parental care is lacking, we may be sure to find compensation for it in some other way. Among the Invertebrata, Fishes, and Reptiles, both parents are generally quite indifferent as to their progeny. An immense proportion of the progeny therefore succumb before reaching maturity; but the number of eggs laid is proportionate to the number of those lost, and the species is preserved nevertheless. If every grain of roe, spawned by the female fishes, were fecundated and hatched, the sea would not be large enough to hold all the creatures resulting from them. The eggs of Reptiles need no maternal care, the embryo being developed by the heat of the sun; and their young are from the outset able to help themselves, leading the same life as the adults. Among Birds, on the other hand, parental care is an absolute necessity. Equal and continual warmth is the first requirement for the development of the embryo and the preservation of the young ones. For this the mother almost always wants the assistance of the father, who provides her with necessaries, and sometimes relieves her of the brooding. Among Mammals, the young can never do without the mother at the tenderest age, but the father’s aid is generally by no means indispensable. In some species, as the walrus,[96] the elephant,[97] the Bos americanus,[98] and the bat,[99] there seems to be a rather curious substitute for paternal protection, the females, together with their young ones, collecting in large herds or flocks apart from the males. Again, as to the marriage of the Primates, it is, I think, very probably due to the small number of young, the female bringing forth but one at a time; and, among the highest apes, as in man, also to the long period of infancy.[100] Perhaps, too, the defective family life of the Orang-utan, compared with that of the Gorilla and Chimpanzee, depends upon the fewer dangers to which this animal is exposed. For “except man,” Dr. Mohnike says, “the Orang-utan in Borneo has no enemy of equal strength.”[101] In short, the factors which the existence of a species depends upon, as the number of the progeny, their ability to help themselves when young, maternal care, marriage, &c., vary indefinitely in different species. But in those that do not succumb, all these factors are more or less proportionate to each other, the product always being the maintenance of the species.

Marriage and family are thus intimately connected with each other: it is for the benefit of the young that male and female continue to live together. Marriage is therefore rooted in family, rather than family in marriage. There are also many peoples among whom true conjugal life does not begin before a child is born, and others who consider that the birth of a child out of wedlock makes it obligatory for the parents to marry. Among the Eastern Greenlanders[102] and the Fuegians,[103] marriage is not regarded as complete till the woman has become a mother. Among the Shawanese[104] and Abipones,[105] the wife very often remains at her father’s house till she has a child. Among the Khyens, the Ainos of Yesso, and one of the aboriginal tribes of China, the husband goes to live with his wife at her father’s house, and never takes her away till after the birth of a child.[106] In Circassia, the bride and bridegroom are kept apart until the first child is born;[107] and among the Bedouins of Mount Sinai, a wife never enters her husband’s tent until she becomes far advanced in pregnancy.[108] Among the Baele, the wife remains with her parents until she becomes a mother, and if this does not happen, she stays there for ever, the husband getting back what he has paid for her.[109] In Siam, a wife does not receive her marriage portion before having given birth to a child;[110] while among the Atkha Aleuts, according to Erman, a husband does not pay the purchase sum before he has become a father.[111] Again, the Badagas in Southern India have two marriage ceremonies, the second of which does not take place till there is some indication that the pair are to have a family; and if there is no appearance of this, the couple not uncommonly separate.[112] Dr. Bérenger-Féraud states that, among the Wolofs in Senegambia, “ce n’est que lorsque les signes de la grossesse sont irrécusables chez la fiancée, quelquefois même ce n’est qu’après la naissance d’un ou plusieurs enfants, que la cérémonie du mariage proprement dit s’accomplit.”[113] And the Igorrotes of Luzon consider no engagement binding until the woman has become pregnant.[114]

On the other hand, Emin Pasha tells us that, among the Mádi in Central Africa, “should a girl become pregnant, the youth who has been her companion is bound to marry her, and to pay to her father the customary price of a bride.”[115] Burton reports a similar custom as prevailing among peoples dwelling to the south of the equator.[116] Among many of the wild tribes of Borneo, there is almost unrestrained intercourse between the youth of both sexes; but, if pregnancy ensue, marriage is regarded as necessary.[117] The same, as I am informed by Dr. A. Bunker, is the case with some Karen tribes in Burma. In Tahiti, according to Cook, the father might kill his natural child, but if he suffered it to live, the parties were considered to be in the married state.[118] Among the Tipperahs of the Chittagong Hills,[119] as well as the peasants of the Ukraine,[120] a seducer is bound to marry the girl, should she become pregnant. Again, Mr.Powers informs us that, among the Californian Wintun, if a wife is abandoned when she has a young child, she is justified by her friends in destroying it on the ground that it has no supporter.[121] And among the Creeks, a young woman that becomes pregnant by a man whom she had expected to marry, and is disappointed, is allowed the same privilege.[122]

It might, however, be supposed that, in man, the prolonged union of the sexes is due to another cause besides the offspring’s want of parental care, i.e., to the fact that the sexual instinct is not restricted to any particular season, but endures throughout the whole year. “That which distinguishes man from the beast,” Beaumarchais says, “is drinking without being thirsty, and making love at all seasons.” But in the next chapter, I shall endeavour to show that this is probably not quite correct, so far as our earliest human or semi-human ancestors are concerned.