1963–1968 · Global · Science
Evidence from seafloor mapping, magnetism, earthquakes and continental movement established plate tectonics as the unifying framework for understanding Earth’s dynamic surface.
Atlas dossier · Cold War & DecolonizationFree device narration · synchronized English captions · transcript available
Why it matters
Evidence from seafloor mapping, magnetism, earthquakes and continental movement established plate tectonics as the unifying framework for understanding Earth’s dynamic surface.
Marie Tharp · Harry Hess · Vine and Matthews · geologists · oceanographic survey teams
Plate tectonics changed geology, resource exploration and hazard science, helping explain mountain building, volcanoes and earthquakes.
Interpretation note
This dossier distinguishes the event’s basic chronology from later arguments about meaning, responsibility and legacy. When comparing religious, national, Indigenous or scholarly interpretations, consult the primary and institutional sources above alongside peer-reviewed historical work.
Elsewhere in the world
1960–1970 · AmericasLasers, fiber optics and modern photonicsLasers and low-loss optical fibers made it possible to control and transmit light with extraordinary precision for communication, measurement, surgery and manufacturing.
1967–1970 · AfricaBiafran War and Nigerian humanitarian crisisNigeria’s civil war followed Biafra’s attempted secession amid ethnic violence, political crisis and a federal blockade. Military defeat ended the secession in 1970, after mass civilian suffering, hunger and displacement.
1957 · AfricaGhanaian independenceGhana became the first sub-Saharan African colony to gain independence from European rule in the twentieth-century wave.