Evolutionary Theory By ARojas8 Sep 22, 1707 Linnaeus born Sep 22, 1767 Cuvier born Sep 22, 1795 Hutton proposes his theory of gradualism Sep 22, 1798 Malthus puplished "essay on the principle of population" Sep 22, 1809 Lamarck publishes Principles of Geology Sep 22, 1830 Lyell proposed geological theory of uniformitarianism. Sep 22, 1831 Darwin starts voyage around the world Sep 22, 1844 Darwin writes his essay on the origin of species Sep 22, 1858 Wallace sends his theory to Darwin Sep 22, 1859 Origin of species is published Sep 22, 1865 Mendel published inheritance papers Sep 22, 1943 Demonstration that DNA is the genetic material Sep 22, 1990 Mendel's experiments rediscovered