These pages contain the trends of millennia and centuries in poetry. The individual century pages contain lists of decades and years. A millennium is a period of time, equal to one thousand years (from Latin mille, thousand, and annum, year). ... This page is about centuries as units of time. ... The Chinese poem Quatrain on Heavenly Mountain by Emperor Gaozong (Song Dynasty) Poetry (from the Greek , poesis, making or creating) is a form of art in which language is used for its aesthetic qualities in addition to, or in lieu of, its ostensible meaning. ...