Darwin Day site offers free registration and display of all Darwin Day events. The Perth Mint, Australia will launch a 2009 dated commemorative 1 ounce silver legal tender coin depicting Darwin, young and old; HMS Beagle; and Darwin's signature. Some celebrants also combine Darwin Day with a celebration of Abraham Lincoln, who was also born on 12 February 1809. Still others like to celebrate the many noted individuals that influenced or were influenced by Darwin's work, such as Thomas H. Huxley, Charles Lyell, Alfred Russel Wallace, Carl Sagan, and Ernst Mayr. Support for Darwin Day comes from both secular and religious organisations.
Charles Darwin are about marine invertebrates, starting with plankton collected in a calm spell. On their first stop ashore at St Jago in Cape Verde, Darwin found that a white band high in the volcanic rock cliffs included seashells. FitzRoy had given him the first volume of Charles Lyell's "Principles of Geology", which set out uniformitarian concepts of land slowly rising or falling over immense periods, and Darwin saw things Lyell's way, theorising and thinking of writing a book on geology. When they reached Brazil, Darwin was delighted by the tropical forest, but detested the sight of slavery, and disputed this issue