The geological history of Earth spans billions of years, documenting continuous processes of planetary formation and evolution. Beginning with accretion, the planet developed a molten core and solidifying crust, establishing early cycles of vulcanism and atmospheric change. Subsequent eras saw the establishment of stable continental landmasses and the emergence of complex biospheres. This timeline is marked by repeated supercontinent cycles, significant shifts in oceanic chemistry, and major periods of faunal diversification and extinction. Plate tectonics has been the dominant mechanism driving change, constantly reshaping the crust through the movement of lithospheric plates, leading to the formation of mountain ranges, ocean trenches, and basin subsidence. The resulting record is inscribed in sedimentary and metamorphic rock layers, providing evidence of the planet's fluctuating climate, evolving life forms, and immense physical stresses over deep time.