page_title: Continental drift
hierarchical_section_title: Continental drift
context_page_description: Continental drift is a historical, scientific theory. The theory was first proposed by Abraham Ortelius in 1596. It was fully developed by the German geologist and meteorologist Alfred Wegener in 1915.
  The theory said that parts of the Earth's crust move slowly on top of a liquid mantle of higher density. The theory has now been included in the wider theory of plate tectonics.
context_section_description: Continental drift is a historical, scientific theory. The theory was first proposed by Abraham Ortelius in 1596. It was fully developed by the German geologist and meteorologist Alfred Wegener in 1915. 
  The theory said that parts of the Earth's crust move slowly on top of a liquid mantle of higher density. The theory has now been included in the wider theory of plate tectonics.
caption: First known illustration of the opening of the Atlantic Ocean, by Antonio Snider-Pellegrini, 1858.
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