Charles Darwin is the author of the theory of evolution, an idea that shook the world in the 19th century and reverberates to this day. In his great work, “The Origin of Species”, he proposed that we are all descended from a common ancestor. It is the basis of modern biology and our understanding of Nature. Many of the observations which brought Darwin to this conclusion were made during his long voyage onboard the Beagle, a British ship which took him around the world in a voyage which lasted from 1831 to 1836. Darwin embarked on this voyage as a Christian. The great variety and complexity of the natural world which he encountered on the voyage caused him to question the validity of the established order which he had been taught.