Category:1840 by continent
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1840 by continent
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This
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is for the year
1840
by continent.
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1790s
1800s
1810s
1820s
1830s
1840s
1850s
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1870s
1880s
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