I'm not quite sure what you are looking for, but I say these: 1980s -- 'the (nineteen) eighties' 1910s-- 'the first decade of the twentieth century' 1900-- 'nineteen hundred' from 1946 to 1955 -- 'the mid-(nineteen) forties to the mid-fifties' 1200-1299-- 'the thirteenth century' 1500-1599-- 'the sixteenth century'
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