| Abstract: | In attempting to classify anthropogenic factors of landscape formation, Gumilev rejects Arnold Toynbee's concept of challenge and response as the factors underlying the genesis of civilizations on the ground that it ignores the factor of ethnic differentiation. Gumilev finds that the principal changes introduced by man into the landscape are associated with certain short-term periods of superhuman effort that coincide with intensive processes of ethnogenesis. This intensive activity is followed by a damping inertia that leads ultimately to a new equilibrium between the ethnos and the environment until the next upsurge of activity. |
