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14th
15th
16th
17th
18th
19th
20th
21st
22nd
23rd
24th
Subcategories
This category has the following 12 subcategories, out of 12 total.
0–9
19th-century biologists
(10 C, 11 P)
1810s in biology
(1 C)
1820s in biology
(1 C)
1830s in biology
(1 C)
1840s in biology
(1 C)
1850s in biology
(1 C)
1860s in biology
(6 C)
1870s in biology
(11 C)
1880s in biology
(11 C)
1890s in biology
(11 C)
M
19th century in medicine
(13 C, 3 P)
T
Taxa described in the 19th century
(102 C)
Categories
:
19th century in science
Biology by century