An diofar eadar na mùthaidhean a rinneadh air "21mh Linn"

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b robot Adding: lv:21. gadsimts
Loidhne 85:
[[mi:Rautau 21]]
[[mk:21 век]]
[[mr:इ.स.चे २१ वे शतक]]
[[ms:Abad ke-21]]
[[nds:21. Johrhunnert]]