Аннотация:This paper presents a scheme for global evolution of the Earth. Based on geologic evidence, the Earth’s thermal evolution can be subdivided into two stages: postaccretion, or pregeologic, and a stage of endogene evolution with two megaphases, Archean and Proterozoic-Phanerozoic. Processes in the first stage were controlled mainly by cooling of the outer magma ocean, and those in the second by the release of heat deep within the Earth.