FREDERICK, a city and the county-seat of Frederick county, Maryland, U.S.A., on Carroll's Creek, a tributary of the Monocacy, 61 m. by rail W. by N. from Baltimore and 45 m. N.W. from Washington. Pop. (1890) 8193; (1900) 9296, of whom 1535 were negroes; (1910 census) 10,411. It is served by the Baltimore & Ohio and the Northern Central railways, and by two interurban electric lines. Immediately surrounding it is the rich farming land of the Monocacy valley, but from a distance it appears to be completely shut in by picturesque hills and mountains; to the E., the Linga ore Hills; to the W., Catoctin Mountain; and to the S., Sugar Loaf Mountain. It is built for the most part of brick and stone. Frederick is the seat of the Maryland school for the deaf and dumb and of the Woman's College of Frederick (1893; formerly the Frederick Female Seminary, opened in 1843), which in 1907-1908 had 212 students, 121 of whom were in the Conservatory of Music. Francis Scott Key and Roger Brooke Taney were buried here, and a beautiful monument erected to the memory of Key stands at the entrance to Mount Olivet cemetery. Frederick has a considerable agricultural trade and is an important manufacturing centre, its industries including the canning of fruits and vegetables, and the manufacture of flour, bricks, brushes, leather goods and hosiery. The total value of the factory product in 1905 was $1,937,921, being 34.7% more than in 1900. The municipality owns and operates its water-works and electric-lighting plant. Frederick, so named in honour of Frederick Calvert, son and afterward successor of Charles, Lord Baltimore, was settled by Germans in 1733, and was laid out as a town in 1745, but was not incorporated until 1817. Here in 1755 General Braddock prepared for his disastrous expedition against the French at Fort Duquesne (Pittsburg). During the Civil War the city was occupied on different occasions by Unionists and Confederates, and was made famous by Whittier's poem "Barbara Frietchie."