The Voyage of Charles Darwin S01E05 - I Felt Myself Brought Within Reach of that Great Fact, That Mystery of Mysteries

In 1835 an earthquake destroyed the town of Concepcion in Southern Chile. The effect of it was felt on board the Beagle, and a few days later Darwin witnessed the devastation for himself. It confirmed his view that the whole range of the Andes had been pushed up from the bed of the ocean.