Sonnet 19 is one of 154 sonnets published by the English playwright and poet William Shakespeare in 1609. It is considered by some to be the final sonnet of the initial procreation sequence. The sonnet addresses time directly, as it allows time its great power to destroy all things in nature, but the poem forbids time to erode the young man's fair appearance. The poem casts time in the role of a poet holding an “antique pen”. The theme is redemption, through poetry, of time's inevitable decay. Though there is compunction in the implication that the young man himself will not survive time's effects, because redemption brought by the granting of everlasting youth is not actual, but rather ideal or poetic.

At the Boar's Head is an opera in one act by the English composer Gustav Holst, his op. 42. Holst himself described the work as "A Musical Interlude in One Act". The libretto, by the composer himself, is based on Shakespeare's Henry IV, Part 1 and Henry IV, Part 2.