An diofar eadar na mùthaidhean a rinneadh air "820an"

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b robot Adding: kv:820-ӧд вояс
Loidhne 41:
[[ko:820년대]]
[[ksh:820-er Joohre]]
[[kv:820-ӧд вояс]]
[[la:Decennium 83]]
[[mk:820-ти]]