Category:1820 by continent
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1820 by continent
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is for the year
1820
by continent.
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1770s
1780s
1790s
1800s
1810s
1820s
1830s
1840s
1850s
1860s
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