The theory of continental was proposed by a meteorologist and geologist named Alfed Wegener. At first nobody belive his theory about continental drift because he was a meteorologist, so no one thought he knew much about Geology. After he proved his theory many people started believing him.

There were many evidenses that no one consider as a result of continental drift. These were the same evidense that Alfred Wegener proposed, for example; The coasts of the continents surrounding the Atlantic ocean could, if the continents were moved closer, fit together like a jigsaw puzzle,Living animals in widely separated lands are similar. For example India and Madacasar have similar mammals, which are quite different from those in Africa, even though it is now near to Madascar. Those were two main reasons that continental drift made the way the world look today. Also Wegener noticed that some parts of th ocean floor had ridges, which meant is separating or was separated.

On numerous continents, scientist noticed that there were fossil plants that looked very similar. For instance, a fossil plant in South Africa would look similar compared to the one found in South America, or the one in Antartica would be similar to the one found Australia. It is the same thing for fossil animals.

In addition to Wegeners evidence, he also stated that there was a "unusual presence of coal deposits in the South Polar regions, glacial features in present-day equatorial regions, and the jigsaw fit of the opposing Atlantic continental shelves." He also stated that " that a platic layer in the eartth's interior must exist to accommodate vertical adjustments caused by the creation of new mountains and by the wearing down of old mountains by erosion." These are some studies that ALfred Wegener proposed to prove his theory.

Even though people started accepting Wegener's theory, it was stirring up controversy during the 1920s. Wegener's theory was backed uo by a few scientist, one South African A.L. Dutoit, reinforced the dispute by adding more exact details that showed geological and paleonthological simialrites on both sides of the Atlantic. Second, in 1928 a Scottish geologist Arthur Holmes suggested that thermal convention in the mantle was the action that caused the continents to move slowly.

This theory was said to be not generally accepted, especially by American geologists until the 1950s and 1960s. The theory was put into play by british geophysicists, that reported on magnetic studies if rocks from many places and from each major division of geologic time. This study by the British geophysicist lead to the acception of Alfred Wegener theory of continental drift.