The 1820s reference article from the English Wikipedia on 24-Jul-2004
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1820s

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Centuries:
18th century - 19th century - 20th century
Decades:
1790s 1800s 1810s - 1820s - 1830s 1840s 1850s
Years:
1820 1821 1822 1823 1824 1825 1826 1827 1828 1829
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