When the fugitive body is large, it is forced to split up in order to escape. Hence every fugitive movement tends to assume the character of a dispersal, all the more as organization and leadership vanish in the catastrophe. The fissile character of primitive societies especially contributes to this end, so that almost every story of Indian and native African warfare tells of shattered remnants fleeing in several directions. Among civilized peoples, the dispersal is that of individuals and has far-reaching historical effects. After the destruction of Jerusalem, the Jews were scattered over the earth, the debris of a nation. The religious wars of France during the sixteenth and seventeenth centuries caused Huguenots to flee to Switzerland, Germany, Holland, England, and South Carolina; they even tried to establish a colony on the coast of Brazil. Everywhere they contributed a valuable element to the economic and social life of the community which they joined. The great schism in the Russian Church became an agent of emigration and colonization. It helped to spread the Russian nationality over remote frontier regions of the empire which previously had been almost exclusively Asiatic; and distributed groups of dissenters in the neighboring provinces of Turkey, Roumania, Austria, Poland and Prussia.[171] [Sidenote: Natural regions of retreat.] The hope of safety from pursuit drives fugitive peoples into isolated and barren places that are scarcely accessible or habitable, and thereby extends the inhabited area of the earth long before mere pressure of population would have stretched it to such limits. We find these refugee folk living in pile villages built over the water, in deserts, in swamps, mangrove thickets, very high mountains, marshy deltas, and remote or barren islands, all which can be classified as regions of retreat. Fugitives try to place between themselves and their pursuers a barrier of sea or desert or mountains, and in doing this have themselves surmounted some of the greatest obstacles to the spread of the human race.