An diofar eadar na mùthaidhean a rinneadh air "1840an"

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b robot Adding: ksh:1840-er Joohre
Loidhne 41:
[[ms:1840-an]]
[[nl:1840-1849]]
[[nn:1840-åra]]
[[no:1840-årene]]
[[nrm:Annaées 1840]]
[[os:1840-тæ]]
[[pl:Lata 40. XIX wieku]]
[[pt:Década de 1840]]
Line 52 ⟶ 54:
[[sl:1840.]]
[[sq:Vitet 1840]]
[[su:1840-an]]
[[sv:1840-talet]]
[[tt:1840. yıllar]]