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Alfred Wegener proposed the idea that all the lands were once connected
He had two peices of evidence- The continents seemed to fit together like a jigsaw puzzle
- Fossils of the same prehistoric species were found on continents that were a long way apart. Wegener could see no other explanation for the distribution of these fossils other that the continents themselves moving.
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Wegner published a book titled "The Origins Of Continents And Oceans"
It was considered the start of modern plate tectonics even though it was accepyed in the 1960s -
In 1930 his ideas were dismissed completely and he died in greenland
Wegener passed away on an expedition in greenland where he was finding evidence to support his theory -
The theory was only accepted in 1960 with the help of Arthur Holmes
Arthur Holmes continued on with Wegeners hypothesis and gathered more evidence which led to the theories acceptance -
Harry Hess and R.Deitz made similar theores
Harry Hess in 1961 and R.Deitz in 1962 made theories that relate to what's now called seafloor spreading