The mulatto (using the term loosely to indicate either an intermediate type between white and black or a mingling of the two) is as typically African as the black man and cannot logically be included in the "white" race, especially when American usage includes the mulatto in the Negro race.
It is reasonable, according to fact and historic usage, to include under the word "Negro" the darker peoples of Africa characterized by a brown skin, curled or "frizzled" hair, full and sometimes everted lips, a tendency to a development of the maxillary parts of the face, and a dolichocephalic head. This type is not fixed or definite. The color varies widely; it is never black or bluish, as some say, and it becomes often light brown or yellow. The hair varies from curly to a wool-like mass, and the facial angle and cranial form show wide variation.
It is as impossible in Africa as elsewhere to fix with any certainty the limits of racial variation due to climate and the variation due to intermingling. In the past, when scientists assumed one unvarying Negro type, every variation from that type was interpreted as meaning mixture of blood. To-day we recognize a broader normal African type which, as Palgrave says, may best be studied "among the statues of the Egyptian rooms of the British Museum; the larger gentle eye, the full but not over-protruding lips, the rounded contour, and the good-natured, easy, sensuous expression. This is the genuine African model." To this race Africa in the main and parts of Asia have belonged since prehistoric times.
The color of this variety of man, as the color of other varieties, is due to climate. Conditions of heat, cold, and moisture, working for thousands of years through the skin and other organs, have given men their differences of color. This color pigment is a protection against sunlight and consequently varies with the intensity of the sunlight. Thus in Africa we find the blackest men in the fierce sunlight of the desert, red pygmies in the forest, and yellow Bushmen on the cooler southern plateau.
Next to the color, the hair is the most distinguishing characteristic of the Negro, but the two characteristics do not vary with each other. Some of the blackest of the Negroes have curly rather than woolly hair, while the crispest, most closely curled hair is found among the yellow Hottentots and Bushmen. The difference between the hair of the lighter and darker races is a difference of degree, not of kind, and can be easily measured. If the hair follicles of a China-man, a European, and a Negro are cut across transversely, it will be found that the diameter of the first is 100 by 77 to 85, the second 100 by 62 to 72, while that of the Negro is 100 by 40 to 60. This elliptical form of the Negro's hair causes it to curl more or less tightly.
There have been repeated efforts to discover, by measurements of various kinds, further and more decisive differences which would serve as really scientific determinants of race. Gradually these efforts have been given up. To-day we realize that there are no hard and fast racial types among men. Race is a dynamic and not a static conception, and the typical races are continually changing and developing, amalgamating and differentiating. In this little book, then, we are studying the history of the darker part of the human family, which is separated from the rest of mankind by no absolute physical line, but which nevertheless forms, as a mass, a social group distinct in history, appearance, and to some extent in spiritual gift.
We cannot study Africa without, however, noting some of the other races concerned in its history, particularly the Asiatic Semites. The intercourse of Africa with Arabia and other parts of Asia has been so close and long-continued that it is impossible to-day to disentangle the blood relationships. Negro blood certainly appears in strong strain among the Semites, and the obvious mulatto groups in Africa, arising from ancient and modern mingling of Semite and Negro, has given rise to the term "Hamite," under cover of which millions of Negroids have been characteristically transferred to the "white" race by some eager scientists.
The earliest Semites came to Africa across the Red Sea. The Phoenicians came along the northern coasts a thousand years before Christ and began settlements which culminated in Carthage and extended down the Atlantic shores of North Africa nearly to the Gulf of Guinea.
From the earliest times the Greeks have been in contact with Africa as visitors, traders, and colonists, and the Persian influence came with Cambyses and others. Roman Africa was bounded by the desert, but at times came into contact with the blacks across the Sahara and in the valley of the Nile. After the breaking up of the Roman Empire the Greek and Latin Christians filtered through Africa, followed finally by a Germanic invasion in 429 A.D.
In the seventh century the All-Mother, Asia, claimed Africa again for her own and blew a cloud of Semitic Mohammedanism all across North Africa, veiling the dark continent from Europe for a thousand years and converting vast masses of the blacks to Islam. The Portuguese began to raise the veil in the fifteenth century, sailing down the Atlantic coast and initiating the modern slave trade. The Spanish, French, Dutch, and English followed them, but as traders in men rather than explorers.