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This category has the following 9 subcategories, out of 9 total.
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421:Years of the 19th century by continent
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208:1820 disestablishments by continent
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338:1820 in North America
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390:(11 C, 4 P)
342:(11 C, 3 P)
318:(24 C, 9 P)
405:Categories
270:(7 C, 5 P)
48:category
366:(5 C)
294:(3 C)
253:(3 C)
229:(6 C)
212:(4 C)
177:1870s
172:1860s
167:1850s
162:1840s
157:1830s
151:1820s
145:1810s
140:1800s
135:1790s
130:1780s
125:1770s
46:This
411:1820
114:1825
109:1824
104:1823
99:1822
94:1821
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69:1816
64:1815
53:1820
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279:C
238:A
197:/
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