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

Chaidh 8 baidhtichean a chur ris ,  11 bhliadhna air ais
b
robot Modifying: ar:ملحق:عقد 1840; cosmetic changes
b (robot Adding: kv:1840-ӧд вояс)
b (robot Modifying: ar:ملحق:عقد 1840; cosmetic changes)
 
*[[1840]]
*[[1841]]
*[[1842]]
*[[1843]]
*[[1848]]
*[[1849]]
[[categoryCategory:19mh linn]]
[[categoryCategory:1840s|*]]
 
[[ar:ملحق:عقد 1840]]
[[ast:Años 1840]]
[[be:1840-я]]
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deasachadh