Original preparation of quinine by Pelletier and Caveton
1820
1820
1829
1839 (original); circa 1988 (replica)
1840
1990-96
1838
1934
1838
1830
1828
2000-100 BCE
1813
1810-1840
4000-2001 BCE
1825
1830
1955; 1830
1810-1840
1836
1840
1820-1840
circa 1840
1820-1830
1808
1870-1877
1830
1812
1823
1816
1840s
1893-4
1821
1829
1837
circa 1808
1837
1811-1812
1814
1807
1830
1835
1810-1817
1806
1815
1807
1829
1820
1807
1822
1806