Mirour de l'Omme ("the mirror of mankind") (also Speculum Hominis), which has the Latin title Speculum Meditantis ("mirror of meditation"), is an Anglo-Norman poem of 29,945 lines written in iambic octosyllables by John Gower (c. 1330 – October 1408). Gower's major theme is man's salvation. Internal evidence (no mention of Richard II) suggests that composition was completed before 1380. G. C. Macaulay discovered the only manuscript in the Cambridge University Library.[1]: xviii Only part of the poem survives; the conclusion has been lost.