Alastor, or the Spirit of Solitude (annotated)

Alastor, or The Spirit of Solitude is a classic poem by Percy Bysshe Shelley, written from 10 September to 14 December in 1815 in Bishopsgate, London and first published in 1816. The poem was without a title when Shelley passed it along to his contemporary and friend, Thomas Love Peacock. The poem is 720 lines long. It is considered to be one of the first of Shelley's major poems.