An diofar eadar na mùthaidhean a rinneadh air "550an"

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b robot Adding: kv:550-ӧд вояс
Loidhne 49:
[[ko:550년대]]
[[ksh:550-er Joohre]]
[[kv:550-ӧд вояс]]
[[la:Decennium 56]]
[[mk:550-ти]]