This document provides background information on the Romantic poet John Keats. It discusses his life, works, and critical reception. Key details include that Keats died young at age 26 of tuberculosis, as did his mother and brother; he fell in love with his neighbor Fanny Brawne but could not marry due to lack of money; and he wrote many of his famous poems in 1819, his "annus mirabilis." The document also analyzes themes in his poetry like love, nature, and beauty, and defines concepts like negative capability that were important to Keats' poetic philosophy.