Lanzarote is the easternmost island of the Canary Islands and has a volcanic origin. It was born through fiery eruptions and has solidified lava streams as well as extravagant rock formations. The island emerged about 15 million years ago as product of the Canary hotspot. Alfred Wegener's study of the island whilst visiting in 1912 showed how it fitted in with his theory of continental drift. The island, along with others, emerged after the breakup of the African and the American continental plates. The greatest recorded eruptions occurred between 1730 and 1736 in the area now designated Timanfaya National Park.