CHELSEA, a city of Suffolk county, Massachusetts, U.S.A., on a peninsula between the Mystic and the Chelsea rivers, oppo site the Charlestown and East Boston districts of the city of Bos ton, and bounded on the north by the city of Everett. It has 3m. of water-front on upper Boston bay; and is served by the Boston and Maine and the Boston and Albany railways. The population in 1920 was 43,184, of whom 17,198 were foreign-born white (10,042 from Russia and Poland) ; and in 193o was 45,816 by the Federal census. The central part of the city has been prac tically rebuilt since 1908, when, on April 12, it was swept by a terrible fire. Chelsea is primarily an industrial city, with some 200 factories making products valued at over $50,000,000 an nually. Its leading industries are lithography, shipbuilding and manufactures of shoes, radio sets, car-wheels, rubber products, wall-paper, elastic webbing, boxes, marine clocks, creosote prod ucts, lamp black, shingle stains, whiting, structural iron and orna mental ironwork. It is a centre for junk salvage, with 145 dealers in many kinds of waste material. A U.S. naval hospital, a Ma rine hospital, local headquarters of the Lighthouse Division of the Department of Commerce, the Massachusetts Soldiers' Home are situated here. The assessed valuation of property in 1927 was Chelsea (called Winnisimmet until 1739) was settled in 1624 by Samuel Maverick, a prominent loyalist and churchman, the first settler on Noddle's island (East Boston) and one of the first slave-holders in the colony. It was set off from Boston as a separate town in 1739, and was chartered as a city in 1857. In May, 1775, a British schooner in the Mystic river was captured by colonial militia under Gen. John Stark and Israel Putnam.