Alfred wegener noticed that the continents looked as though they could fit together like a jigsaw puzzle, so he believed that the continents were once connected. he called this the theory of continental drift plate tectonics seafloor spreading pangaea

Alfred Wegener noticed that the continents looked as though they could fit together like a jigsaw puzzle, so he believed that the continents were once connected. He called this the theory of continental drift.

Explanation:

The theory of Continental Drift was proposed in 1912 by the German geographer Alfred Wegener on the basis of accumulated scientific data.

Wegener was not the first to come up with such a thought. The coincidence of the coastlines of Africa and South America was noticed by Francis Bacon in the 1620s. The idea of the movement of the continents was put forward in 1668 by the French theologian Franco Placke. The German theologian Theodor Lilienthal went further than Bacon, when in 1756 he suggested that the coasts of Africa and South America exactly correspond to each other. Antonio Snyder, an American who lived in Paris, suggested in 1858 that when the Earth cooled, it contracted unevenly, and for this reason the substance on the surface split into parts. He presented, in addition, rocks and fossils that are common to the two continents. Evgraf Bykhanov, a Russian amateur astronomer, in his 1877 book formulated the hypothesis of horizontal movement of continents.

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