The United States During the 19th Century By lulu_lessenberry Period: Jan 1, 1826 to Dec 31, 1887 The Mid 19th Century to the Late 19th Century Mar 6, 1857 Dred Scott Case Decision Nov 24, 1859 Charles Darwin Publishes "The Origin of Species" Apr 12, 1861 American Civil War Begins Jul 1, 1863 Emancipation Proclamation May 9, 1865 American Civil War Ends Jan 1, 1866 Gregor Mendel Published Experiments in Plant Hybridization Jan 1, 1871 Friedrich Miescher Isolates "Nucleic Acid" From Pus Cells Mar 1, 1875 Civil Rights Act is Passed