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36:is for topics specifically related to the year
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262:Scientific organizations established in 1807
331:This list may not reflect recent changes
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314:(2 C, 11 P)
380:Categories
179:category
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45:science
290:(1 C)
266:(1 P)
246:(1 P)
226:(2 P)
213:(4 P)
169:1850s
164:1840s
159:1830s
154:1820s
149:1810s
143:1800s
137:1790s
132:1780s
127:1770s
122:1760s
117:1750s
32:This
386:1807
106:1812
101:1811
96:1810
91:1809
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350:0–9
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