Pangaea (also spelled Pangea) is derived from "pangaia," which is Greek for "all the Earth," according to Encyclopedia Britannica, It was a supercontinent that contained almost all of Earth's landmass. Pangaea was formed approximately 270 million years ago in the early Permian period and broke apart in the Jurassic period.
The idea of Pangaea was first proposed by German meteorologist Alfred Wegener in 1912 as a cornerstone of the theory of continental drift, a theory later replaced by plate tectonics. The dissolution of Pangaea led to the modern arrangement of Earth's landmass and its oceans. It is believed that several supercontinents like Pangaea existed during Earth's history, according to Encyclopedia Britannica.