Influences of Geographic Environment Part 10

[Sidenote: Historical movement and race distribution.]

The forms which have been a.s.sumed by the historical movement are varied, but all have contributed to the spread of man over the habitable globe.

The yellow, white and red races have become adapted to every zone; the black race, whether in Africa, Australia or Melanesia, is confined chiefly to the Tropics. A like conservatism as to habitat tends to characterize all sub-races, peoples, and tribes of the human family. The fact which strikes one in studying the migrations of these smaller groups is their adherence each to a certain zone or heat belt defined by certain isothermal lines (see map chap. XVII.), their reluctance to protrude beyond its limits, and the restricted range and small numerical strength of such protrusions as occur. This seems to be the conservatism of the mature race type, which has lost some of its plasticity and shuns or succ.u.mbs to the ordeal of adaptation to contrasted climatic conditions, except when civilization enables it partially to neutralize their effects.

[Ill.u.s.tration: PRIMITIVE INDIAN STOCKS OF SOUTH AMERICA (From Helmolt's _History of the World_. By permission of Dodd, Mead & Co.)]

[Sidenote: Migrations in relation to zones and heat belts.]

In South America, Caribs and Arawaks showed a strictly tropical distribution from Hayti to the southern watershed of the Amazon. The Tupis, moving down the Parana-La Plata system, made a short excursion beyond the Tropic of Capricorn, though not beyond the hot belt, then turned equator-ward again along the coast.[195] In North America we find some exceptions to the rule. For instance, though the main area of the Athapascan stock is found in the frigid belt of Canada and Alaska, north of the annual isotherm of 0C. (32F.) small residual fragments of these people are scattered also along the Pacific coast of Oregon and California, marking the old line of march of a large group which drifted southward into Arizona, New Mexico, Texas and the northern part of Mexico. The Shoshone stock, which originally occupied the Great Basin and western intermontane plateau up to the borders of Canada, sent out offshoots which developed into the ancient civilized tribes of tropical Mexico and Central America. Both these emigrations to more southern zones were part of the great southward trend characterizing all movements on the Pacific side of the continent, probably from an original ethnic port of entry near Bering Strait; and part also of the general southward drift in search of more genial climate, which landed the van of northern Siouan, Algonquin and Iroquoian stocks in the present area of South Carolina, Georgia, Alabama, Mississippi and Louisiana, while the base of their territory stretched out to its greatest width in southern Canada and contiguous parts of the United States. [See map page 54.][196]

[Ill.u.s.tration: ETHNOGRAPHICAL MAP OF INDIA FROM THE INDIAN CENSUS OF 1901.]

[Ill.u.s.tration: ETHNOGRAPHICAL MAP OF ASIA. Vertical Shading in the North is Slav.]

[Sidenote: Range of movements in Asia.]

If we turn to the eastern hemisphere, we find the Malays and Malayo-Polynesians, differentiated offshoots of the Mongolian stock, restricted to the Tropics, except where Polynesians have spread to outlying New Zealand. The Chinese draw their political boundary nearly along the Tropic of Cancer, but they have freely lapped over this frontier into Indo-China as far as Singapore.[197] Combined with this expansion was the early infiltration of the Chinese into the Philippines, Borneo, and the western Sunda Isles, all distinctly tropical. The fact that the Chinese show a physical capacity for acclimatization found in no other race explains in part their presence into the Tropics. In contrast, the Aryan folk of India, whether in their pure type as found in the Punjab and Rajputana Desert, or mingled with the earlier Dravidian races belong to the hot belt but scarcely reach the Tropic of Cancer,[198] though their language has far overshot this line both in the Deccan and the Ganges Delta. One spore of Aryan stock, in about 450 B.C., moved by sea from the Bay of Cambay to Ceylon; mingling there with the Tamil natives, they became the progenitors of the Singhalese, forming a hybrid tropical offshoot.

Europe, except for its small sub-arctic area, has received immigrants, according to the testimony of history and ethnology, only from the temperate parts of Asia and Africa, with the one exception of the Saracens of Arabia, whose original home lay wholly within the hot climate belt of 20C. (68F.). Saracen expansion, in covering Persia, Syria, and Egypt, still kept to this hot belt; only in the Barbary Coast of Africa and in Spain did it protrude into the temperate belt. Though this last territory was extra-tropical, it was essentially semi-arid and sub-tropical in temperature, like the dry trade-wind belt whence the Saracens had sprung.

[Ill.u.s.tration: ETHNOGRAPHICAL MAP OF AFRICA AND ARABIA.]

[Sidenote: Range of movements in Africa.]

The Semitic folk of Arabia and the desert Hamites of northern Africa, bred by their hot, dry environment to a nomadic life, have been drawn southward over the Sahara across the Tropic into the gra.s.slands of the Sudan, permeating a wide zone of negro folk with the political control, religion, civilization and blood of the Mediterranean north. Here similar though better conditions of life, a climate hotter though less arid, attracted Hamitic invasion, while the relatively dense native population in a lower stage of economic development presented to the commercial Semites the attraction of lucrative trade. South of the equator the native Bantu Kaffirs, essentially a tropical people, spread beyond their zonal border to the south coast of Africa at 33 S.L., and displaced the yellow Hottentots[199] before the arrival of the Dutch in 1602; while in the early nineteenth century we hear of the Makololo, a division of this same Kaffir stock, leaving their native seats near the southern sources of the Vaal River at 28 S.L. and moving some nine hundred miles northward to the Barotse territory on the upper Zambesi at 15 S.L.[200] This again was a movement of a pastoral people across a tropic to other gra.s.slands, to climatic conditions scarcely different from those which they had left.

[Sidenote: Colonization and lat.i.tude.]

The modern colonial movements which have been genuine race expansions have shown a tendency not only to adhere to their zone, but to follow parallels of lat.i.tude or isotherms. The stratification of European peoples in the Americas, excepting Spanish and Portuguese, coincides with heat zones. Internal colonization in the United States reveals the same principle.[201] Russian settlements in Asia stretch across Siberia chiefly between the fiftieth and fifty-fifth parallels; these same lines include the ancient Slav territory in Germany between the Vistula and Weser. The great efflux of home-seekers, as opposed to the smaller contingent of mere conquerors and exploiters, which has poured forth from Europe since the fifteenth century, has found its destinations largely in the temperate parts of the Americas, Australia, New Zealand, and South Africa. Even the Spanish overlords in Mexico and Peru domiciled themselves chiefly in the highlands, where alt.i.tude in part counteracts tropical lat.i.tude. European immigration into South America to-day greatly predominates in the temperate portions,--in Argentine, Uruguay, Paraguay, southern Brazil and southern Chile. While Argentine's population includes over one million white foreigners, who comprise twenty per cent. of the total,[202] Venezuela has no genuine white immigration. Its population, which comprises only one per cent. of pure whites, consists chiefly of negroes, mulattoes, and Sambos, hybrids of negro and Indian race. In British Guiana, negroes and East Indian coolies, both importations from other tropical lands, comprise eighty-one per cent. of the population.[203]

The movement of Europeans into the tropical regions of Asia, Australasia, Africa and America, like the American advance into the Philippines, represents commercial and political, not genuine ethnic expansion. Except where it resorts to hybridization, it seeks not new homesteads, but the profits of tropical trade and the markets for European manufactures found in r.e.t.a.r.ded populations. These it secures either by a small but permanently domiciled ruling cla.s.s, as formerly in Spanish and Portuguese America, or by a body of European officials, clerks, agents and soldiers, sent out for a term of years. Such are the seventy-six thousand Britishers who manage the affairs of commerce and state in British India, and the smaller number of Dutch who perform the same functions in the Dutch East India islands. The basis of this system is exploitation. It represents neither a high economic, ethical, nor social ideal, and therefore lacks the stamp of geographic finality.

[Sidenote: Movement to like geographic conditions.]

A migrating or expanding people, when free to choose, is p.r.o.ne to seek a new home with like geographic conditions to the old. Hence the stamp once given by an environment tends to perpetuate itself. All people, especially those in the lower stages of culture, are conservative in their fundamental activities. Agriculture is intolerable to pastoral nomads, hunting has little attraction for a genuine fisher folk.

Therefore such peoples in expansion seek an environment in which the national apt.i.tudes, slowly evolved in their native seats, find a ready field. Thus arise natural provinces of distribution, whose location, climate, physical features, and size reflect the social and economic adaptation of the inhabitants to a certain type of environment. A shepherd folk, when breaking off from its parent stock like Abraham's family from their Mesopotamian kinsmen, seeks a land rich in open pastures and large enough to support its wasteful nomadic economy. A seafaring people absorb an ever longer strip of seaboard, like the Eskimo of Arctic America, or throw out their settlements from inlet to inlet or island to island, as did Malays and Polynesians in the Pacific, ancient Greeks and Phoenicians in the subtropical Mediterranean, and the Norse in the northern seas. The Dutch, bred to the national profession of diking and draining, appear in their element in the water-logged coast of Sumatra and Guiana,[204] where they cultivate lands reclaimed from the sea; or as colonists in the Vistula lowlands, whither Prussia imported them to do their ancestral task, just as the English employed their Dutch prisoners after the wars with Holland in the seventeenth century to dike and drain the fens of Cambridgeshire and Lincolnshire.

Moreover, the commercial talent of the Dutch, trained by their advantageous situation on the North Sea about the Rhine mouths, guided their early traders to similar locations elsewhere, like the Hudson and Delaware Rivers, or planted them on islands either furnishing or commanding extensive trade, such as Ceylon, Mauritius, the East Indies, or the Dutch holdings in the Antilles.

Much farther down in the cultural scale we find the fisher tribes of Central Africa extending their villages from point to point along the equatorial streams, and the river Indians of South America gradually spreading from headwaters to estuary, and thence to the related environment of the coast. The Tupis, essentially a water race, have left traces of their occupation only where river or coast enabled them to live by their inherited apt.i.tudes.[205] The distribution of the ancient mounds in North America shows their builders to have sought with few exceptions protected sites near alluvial lowlands, commanding rich soil for cultivation and the fish supply from the nearby river. Mountaineer folk often move from one upland district to another, as did the Lombards of Alpine Pannonia in their conquest of Lombardy and Apennine Italy, where all their four duchies were restricted to the highlands of the peninsula.[206] The conquests of the ancient Incas and the spread of their race covered one Andean valley after another for a stretch of one thousand five hundred miles, wherever climatic and physical conditions were favorable to their irrigated tillage and highland herds of llamas.

They found it easier to climb pa.s.s after pa.s.s and mount to ever higher alt.i.tudes, rather than descend to the suffocating coasts where neither man nor beast could long survive, though they pushed the political boundary finally to the seaboard. [Map page 101.]

[Sidenote: Movement to better geographic conditions.]

The search for better land, milder climate, and easier conditions of living starts many a movement of peoples which, in view of their purpose, necessarily leads them into an environment sharply contrasted to their original habitat. Such has been the radial outflow of the Mongoloid tribes down from the rugged highlands of central Asia to the fertile river lowlands of the peripheral lands; the descent of the Iran pastors upon the agricultural folk of the Indus, Ganges and Mesopotamian valleys, and the swoop of desert-born conquerors upon the unresisting tillers of well-watered fields in all times, from the ancient Hyksos of the Nile to the modern Fulbe of the Niger Valley.

[Sidenote: Southward and westward drifts in the northern hemisphere.]

The attraction of a milder climate has caused in the northern hemisphere a constantly recurring migration from north to south. In primitive North America, along the whole broad Atlantic slope, the predominant direction of Indian migrations was from north to south, accompanied by a drift from west to east.[207] On the Pacific side of the continent also the trend was southward. This is generally conceded regardless of theory as to whether the Indians first found entrance to the continent at its northeast or northwest corner. It was a movement toward milder climates.[208] Study of the _Volkerwanderungen_ in Europe reveals two currents or drifts in varied combination, one from north to south and the other from east to west, but both of them aimed at regions of better climate; for the milder temperature and more abundant rainfall of western Europe made a country as alluring to the Goths, Huns, Alans, Slavs, Bulgars and Tartars of Asiatic deserts and Russian steppes, as were the sunny Mediterranean peninsulas to the dwellers of the bleak Baltic coasts. This is one geographic fact back of the conspicuous westward movement formulated into an historical principle: "Westward the star of empire takes its course." The establishment of European colonies on the western side of the Atlantic, their extension thence to the Pacific and ever westward, till European culture was transplanted to the Philippines by Spain and more recently by the United States, const.i.tute the most remarkable sustained movement made by any one race.

[Sidenote: Eastward movements.]

But westward movements are not the only ones. On the Pacific slope of Asia the star has moved eastward. From highland Mongolia issued the throng which originally populated the lowlands of China; and ever since, one nomad conqueror after the other has descended thence to rule the fruitful plains of Chili and the teeming populations of the Yangtze Valley.[209] Russia, blocked in its hoped for expansion to the west by the strong powers of central Europe, stretched its dominion eastward to the Pacific and for a short time over to Alaska. The chief expansion of the German people and the German Empire in historical times has also been from west to east; but this eastward advance is probably only retracing the steps taken by many primitive Teutonic tribes as they drifted Rhineward from an earlier habitat along the Vistula.

[Sidenote: Return movements.]

Since the world is small, it frequently happens that a people after an interval of generations, armed with a higher civilization, will reenter a region which it once left when too crude and untutored to develop the possibilities of the land, but which its better equipment later enables it to exploit. Thus we find a backward expansion of the Chinese westward to the foot of the Pamir, and an internal colonization of the empire to the Ili feeder of Lake Balkash. The expansion of the j.a.panese into Korea and Saghalin is undoubtedly such a return current, after an interval long enough to work a complete transformation in the primitive Mongolians who found their way to that island home. Sometimes the return represents the ebbing of the tide, rather than the back water of a stream in flood. Such was the retreat of the Moors from Spain to the Berber districts of North Africa, whither they carried echoes of the brilliant Saracen civilization in the Iberian Peninsula. Such has been the gradual withdrawal of the Turks from Europe back to their native Asia, and slow expulsion of the Tartar tribes from Russia to the barren Asiatic limits of their former territory. [See map page 225.]

[Sidenote: Regions of attraction and repulsion.]

Voluntary historical movements, seeking congenial or choice regions of the earth, have left its less favored spots undisturbed. Paucity of resources and isolation have generally insured to a region a peaceful history; natural wealth has always brought the conqueror. In ancient Greece the fruitful plains of Thessaly, Boeotia, Elis and Laconia had a fatal attraction for every migrating horde; Attica's rugged surface, poor soil, and side-tracked location off the main line of travel between h.e.l.las and the Peloponnesus saved it from many a rough visitant,[210] and hence left the Athenians, according to Thucydides, an indigenous race. The fertility of the Rhine Valley has always attracted invasion, the barren Black Forest range has repelled and obstructed it.

The security of such unproductive highlands lies more in their failure to attract than in their power to resist conquest. When to abundant natural resources, a single spot adds a reputation for wealth, magnificence, an exceptional position for the control of territory or commerce, it becomes a geographical magnet. Such was Delphi for the Gauls of the Balkan Peninsula in the third century, Rome for the Germanic and Hunnish tribes of the _Volkerwanderung_, Constantinople for the Normans, Turks and Russians, Venice for land-locked Austria, the Mississippi highway and the outlet at New Orleans for our Trans-Allegheny pioneers.

[Sidenote: Psychical influences in certain movements.]

Sometimes the goal is fabulous or mythical, but potent to lure, like the land of El Dorado, abounding in gold and jewels, which for two centuries spurred on Spanish exploration in America. Other than purely material motives may initiate or maintain such a movement, an ideal or a dream of good, like the fountain of eternal youth which brought Ponce de Leon to Florida, the search for the Islands of the Blessed, or the spirit of religious propaganda which stimulated the spread of the Spanish in Mexico and the French in Canada, or the hope of religious toleration which has drawn Quaker, Puritan, Huguenot, and Jew to America. It was an idea of purely spiritual import which directed the century-long movement of the Crusades toward Jerusalem, half Latinized the Levant, and widened the intellectual horizon of Europe. A national or racial sentiment which enhaloes a certain spot may be pregnant with historical results, because at any moment it may start some band of enthusiasts on a path of migration or conquest. The Zionist agitation for the return of oppressed Jews to Palestine, and the establishment of the Liberian Republic for the negroes in Africa rest upon such a sentiment. The reverence of the Christian world for Rome as a goal of pilgrimages materially enhanced the influence of Italy as a school of culture during the Middle Ages.

The spiritual and ethnic a.s.sociation of the Mohammedan world with Mecca is always fraught with possible political results. The dominant tribes of the Sudan, followers of Islam, who proudly trace back a fict.i.tious line of ancestry to the Arabs of Yemen, are readily incited to support a new prophet sprung from the race of Mecca.[211] The pilgrimages which the Buddhists of the Asiatic highlands make to the sacred city of Lha.s.sa ensure China's control over the restless nomads through the instrumentality of the Grand Lama of Tibet.

[Sidenote: Results of historical movement.]

Historical movements are varied as to motive, direction, numerical strength, and character, but their final results are two, differentiation and a.s.similation. Both are important phases of the process of evolution, but the latter gains force with the progress of history and the increase of the world's population.

[Sidenote: Differentiation and area.]

A people or race which, in its process of numerical growth, spreads over a large territory subjects itself to a widening range of geographic conditions, and therefore of differentiation. The broad expansion of the Teutonic race in Europe, America, Australia and South Africa has brought it into every variety of habitat. If the territory has a monotonous relief like Russia, nevertheless, its mere extent involves diversity of climate and location. The diversity of climate incident to large area involves in turn different animal and plant life, different crops, different economic activities. Even in lowlands the relief, geologic structure, and soil are p.r.o.ne to vary over wide districts. The monotonous surface of Holland shows such contrasts. So do the North German lowlands; here the sandy barren flats of the "geest" alternate with stretches of fertile silt deposited by the rivers or the sea,[212]

and support different types of communities, which have been admirably described by Gustav Frenssen in his great novel of Jon Uhl. The flat surface of southern Illinois shows in small compa.s.s the teeming fertility of the famous "American bottom," the poor clay soil of "Egypt"

with its backward population, and the rich prairie land just to the north with its prosperous and progressive farmer cla.s.s.

When the relief includes mountains, the character not only of the land but of the climate changes, and therewith the type of community. Hence neighboring districts may produce strongly contrasted types of society.

Madison County of Kentucky, lying on the eastern margin of the Bluegra.s.s region, contains the rich landed estates, negro laboring cla.s.s and aristocratic society characteristic of the "planter" communities of the old South; and only twenty miles southeast of Richmond, the center of this wealth and refinement, it includes also the rough barren hill country of the c.u.mberland Plateau, where are found one-room cabins, moonshine stills, feuds, and a backward population sprung from the same pure English stock as the Bluegra.s.s people.

[Sidenote: Contrasted environments.]

Here is differentiation due to the immediate influences of environment.

The phenomenon reappears in every part of the world, in every race and every age. The contrast between the ancient Greeks of the mountains, coasts and alluvial valleys shows the power of environment to direct economic activities and to modify culture and social organization. So does the differences between the coast, steppe, and forest Indians of Guiana,[213] the Kirghis of the Pamir pastures and the Irtysh River valley, the agricultural Berbers of the Atlas Mountains and the Berber nomads of the Sahara, the Swiss of the high, lonely Engadine and those of the crowded Aar valley.

Contrasted environments effect a natural selection in another way and thereby greatly stimulate differentiation, whenever an intruding people contest the ownership of the territory with the inhabitants. The struggle for land means a struggle also for the best land, which therefore falls to the share of the strongest peoples. Weaklings must content themselves with poor soils, inaccessible regions of mountain, swamp or desert. There they deteriorate, or at best strike a slower pace of increase or progress. The difference between the people of the highlands and plains of Great Britain or of France is therefore in part a distinction of race due to this geographical selection,[214] in part a distinction of economic development and culture due to geographic influences. Therefore the piedmont belts of the world, except in arid lands, are cultural, ethnic and often political lines of cleavage, showing marked differentiation on either side. Isotherms are other such cleavage lines, marking the limits beyond which an aggressive people did not desire to expand because of an uncongenial climate. The distinction between Anglo-Saxon and Latin America is one of zone as well as race.

Everywhere in North America the English stock has dominated or displaced French and Spanish compet.i.tors down to the Mexican frontier.

As the great process of European colonization has permeated the earth and multiplied its population, not only the best land but the amount of this has commenced to differentiate the history of various European nations, and that in a way whose end cannot yet be definitely predicted.

The best lands have fallen to the first-comers strong enough to hold them. People who early develop powers of expansion, like the English, or who, like the French and Russians, formulate and execute vast territorial policies, secure for their future growth a wide base which will for all time distinguish them from late-comers into the colonial field, like Germany and Italy. These countries see the fecundity of their people redounding to the benefit of alien colonial lands, which have been acquired by enterprising rivals in the choice sections of the temperate zone. German and Italian colonies in torrid, unhealthy, or barren tropical lands, fail to attract emigrants from the mother country, and therefore to enhance national growth.

[Sidenote: Two-type populations.]

When colonizers or conquerors appropriate the land of a lower race, we find a territory occupied at least for a time by two types of population, const.i.tuting an ethnic, social and often economic differentiation. The separation may be made geographical also. The Indians in the United States have been confined to reservations, like the Hottentots to the twenty or more "locations" in Cape Colony. This is the simplest arrangement. Whether the second or lower type survives depends upon their economic and social utility, into which again geographic conditions enter. The Indians of Canada are a distinct economic factor in that country as trappers for the Hudson Bay Company, and they will so remain till the hunting grounds of the far north are exhausted. The native agriculturists in the Tropics are indispensable to the unacclimated whites. The negroes of the South, introduced for an economic purpose, find their natural habitat in the Black Belt. Here we have an ethnic division of labor for geographical reasons. Castes or social cla.s.ses, often distinguished by shades of color as in Brahman India, survive as differentiations indicating old lines of race cleavage. There is abundant evidence that the upper cla.s.ses in Germany, France, Austria, and the British Isles are distinctly lighter of hair and eyes than the peasantry.[215] The high-cla.s.s j.a.panese are taller and fairer than the ma.s.ses. Nearly all the African tribes of the Sudan and bordering Sahara include two distinct cla.s.ses, one of lighter and one of darker shade. Many Fulbe tribes distinguish these cla.s.ses by the names of "Blacks" and "Whites."[216] The two-type people are the result of historical movements.

[Sidenote: Differentiation and isolation.]

Differentiation results not only from contrasted geographic conditions, but also from segregation. A moving or expanding throng in search of more and better lands drops off one group to occupy a fertile valley or plain, while the main body goes on its way, till it reaches a satisfactory destination or destinations. The tendency to split and divide, characteristic of primitive peoples, is thus stimulated by migration and expansion. Each offshoot, detached from the main body, tends to diverge from the stock type. If it reaches a naturally isolated region, where its contact without is practically cut off, it grows from its own loins, emphasizes its group characteristic by close in-breeding, and tends to show a development related to biological divergence under conditions of isolation. Since man is essentially a gregarious animal, the size of every such migrating band will always prevent the evolution of any sharply defined variety, according to the standard of biology.