John Keats was a prominent English Romantic poet, known for his vivid imagery and profound exploration of beauty and transience. He was born on October 31, 1795, in Moorgate, London, England. The son of a stable keeper, Keats faced a challenging early life marked by the loss of his parents. His father died in an accident when he was eight, and his mother succumbed to tuberculosis when he was fourteen. These early experiences of grief would later inform the depth of emotion in his poetry.

Keats initially pursued a career in medicine and studied at Guy's Hospital, but he soon turned to poetry, fostering a literary career that would leave an indelible mark on English literature. His first published work, "Poems," appeared in 1817, but it was his later collections, including "Endymion" (1818) and the celebrated "Ode to a Nightingale" (1819), that established him as a key figure in the Romantic movement. Keats's poetry is characterized by a rich sensuality and a preoccupation with themes of mortality and the ephemeral nature of beauty.

Despite his literary success, Keats struggled with personal issues, including financial difficulties and ill health. He fell in love with Fanny Brawne, a relationship that was fraught with tension due to his financial instability and the societal norms of the time. Keats's health deteriorated as he battled tuberculosis, a disease that would ultimately claim his life. He died on February 23, 1821, in Rome, Italy, at the age of 25, leaving behind a legacy that would influence countless poets and writers in the years to come. His notable works continue to resonate, celebrating the transient beauty of life and art, ensuring that John Keats remains a central figure in the canon of English literature.