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Millennium: 2nd millennium
Centuries: 18th century19th century20th century
Decades: 1810s 1820s 1830s1840s1850s 1860s 1870s
Years: 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849
BirthsDeathsBy country

The 1840s decade ran from January 1, 1840, to December 31, 1849.

1840s sections
Intro   Politics and wars    Science and Technology    Commerce    Civil rights    Popular culture    Religion and Philosophy    Disasters, natural events, and notable mishaps    Establishments    People    References   Further reading  

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