Marietta (mârēĕtˈə) [key]. 1 City (1990 pop. 44,129), seat of Cobb co., NW Ga.; inc. 1834. The principal manufactures of this suburb of Atlanta are related to aircraft production. At the foot of Kennesaw Mt., Marietta was the scene of a Union defeat in the Civil War (see Atlanta campaign). Kennesaw Mountain National Battlefield Park (see National Parks and Monuments, table) marks the site. Many Civil War dead are buried in the city's large national cemetery. Zion Baptist Church (1866) is an important African-American institution. Kennesaw State Univ. and Southern Polytechnic State Univ. are in Marietta. Dobbins Air Reserve Base is nearby.
2 City (1990 pop. 15,026), seat of Washington co., SE Ohio, at the confluence of the Muskingum and Ohio rivers; inc. 1801. It is a trading center for an agricultural and dairying area. Among the city's varied manufactures are machinery, plastics, chemicals, ventilators, and paint. Marietta was the first planned, permanent settlement in Ohio and the Northwest Territory. Founded in 1788 by the Ohio Company of Associates, and set among local Mound Builders' earthworks, Marietta grew as a shipbuilding and shipping center for a farm area. The first houses were in a stockaded enclosure called Campus Martius. The city is the seat of Marietta College. Points of interest include the Ohio River Museum; Mound Cemetery, where numerous Revolutionary officers are buried; and the Campus Martius Memorial State Museum.