Original preparation of quinine by Pelletier and Caveton
1820
1820
1829
1839 (original); circa 1988 (replica)
circa 1848
1848
1840
1990-96
1838
1934
1838
1830
1828
2000-100 BCE
1934
4000-2001 BCE
1825
1830
1955; 1830
1836
1840
1820-1840
circa 1840
1820-1830
1870-1877
1830
1823
1841
1840s
1893-4
1821
1829
1837
1837
1830
1835
1845
1829
1820
1842
1822
1835-1840
1835
1860-1920
circa 1840
circa 1840
circa 1840
1825-1835
1846
1834
1834