Who discovered the continental drift?

This discovery is credited to the German geologist Alfred Wegener.He not only discovered that coastline of South America fits very well against that of Africa but also showed that the fossils  in both the coastal region are similar. He also proposed another idea:about 300 million years ago there must have been a single, continuous landmass that somehow broke up and gave rise to several parts-the tectonic plates. The continats on these plates drifted away from one another and then rejoined the way they are today. thus, landmass were displaced, and their position is changing even today. The tectonic plates are still moving at a speed of around 6cm per year.