Category:1820 by country
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1820 by country
.
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This
category
is for the year
1820
by country.
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1770s
1780s
1790s
1800s
1810s
1820s
1830s
1840s
1850s
1860s
1870s
See also:
Category:1820 by city
and
Category:1820 by continent