American essayist, poet, and diplomatist, born in Cambridge, Massachusetts, son of a clergyman; graduated at Harvard in 1838, studied law, but acquiring extensive scholarship devoted himself to literature; volumes of poems were published by him in 1840 and 1844, but the Mexican War of 1846 and the Civil War of 1861-65 called forth respectively the first and second series of "Biglow Papers," in rustic dialect, the highest expression of his genius and the finest modern English satire; he was an ardent abolitionist; succeeding Longfellow in the chair of Modern Languages and Literature in Harvard in 1855, he visited Europe to study, returned as U.S. minister to Spain in 1877, was transferred to England 1880-1885; of his prose work "My Study Windows" and "Among my Books" are essays on literary subjects, "Fireside Travels" contain reminiscences, and his last work was a "Life of Hawthorne"; he died at Cambridge in the house of his birth (1818-1891).