1859
Agnes M Connon (Peterson) was 23 years old when Charles Darwin publishes On the Origin of Species. Charles Robert Darwin, was an English naturalist, geologist and biologist, best known for his contributions to the science of evolution. He established that all species of life have descended over time from common ancestors and, in a joint publication with Alfred Russel Wallace, introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.
Read More on Wikipedia
1836
1837
1839
1840
1842
1843
1844
1846
1847
1848
1851
1852
1853
1854
1856
1857
1858
1859
1860
1861
1862
1864
1865
1866
1867
1868
1869
1872
1874
1876
1877
1879
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1901
1903
1905
1908
1912
1914
1915
1916
1917
1918
1919
1920
1921
1922