Darwin Day celebrates Charles Darwin, one of the world’s most influential scientists, on the day of his birth, February 12, 1809. Darwin is most famous for his work on evolutionary theory and the theory of natural selection, which is now sometimes known as Darwinism. Evolution is a highly debated theory amongst the general public, but almost all scientists accept it as one of the most important cornerstones of life science. Darwin is still considered one of the most important scientists of all time and his contributions to the scientific community are still taught to this day. His birthday has been celebrated since the time of his death by some groups and organizations. Events and celebrations are now held around the world to celebrate his achievements.