Summary: Written probably in 1754 or 1755. First printed privately in 1774. First published, in two versions, among the notes to the poems, entitled "Ode, On the Pleasure arising from Vicissitude", and as "Ode" in Mason'sMemoirs (1775), 78-81 (with Mason's additions) and 236-237 (ll. 1-48 only) respectively.