On this day in 1859, Charles Darwin published his ground-breaking book ‘On the Origin of Species’. The book introduced the idea that organisms evolve through natural selection. Darwin included evidence he gathered on the Beagle expedition in the 1830s, where he traveled widely recording his encounters. The concept of evolution revolutionised science, and was very unpopular at its time for its supposed ignoring of God’s role in man’s history. His ideas were widely ridiculed and satirised, however now his theory is the foundation of modern scientific thinking.