In 1815, German geologist Christian Leopold von Buch visited the Canary Islands, during which he visited the island of Tenerife where he was taken to the Caldera de las Cañadas. He visited La Palma after he had been to Tenerife, and in his journal he makes it clear that he was able to distinguish between a caldera of volcanic origin and the erosional origins for the caldera Taburiente. Following his return to Germany he published his journal and he introduced the term "caldera" to the geological vocabulary.