The City of Warren, Pennsylvania was founded on the Allegheny River in 1795. The town, named for a distinguished patriot, General Joseph Warren, killed in battle of Bunker Hill, was incorporated as a borough in 1832 and became a Home Rule Municipality on January 1, 1978. The City contains 21 parks with 180 acres and is the gateway to the Allegheny National Forest. As the county seat and the industrial and commercial center of the County, Warren effectively serves a population of approximately 25,000. A diversified economic base, containing 106 manufacturers, employing 6,900 people, has provided the City with financial stability and growth. Supported in the 19th and 20th centuries by timber and oil industries, Warren's distinctive architecture encompasses 25 different styles and includes one the largest and most unique collections of historic properties in the state. The Warren Historic District is comprised of twenty-eight blocks in the heart of the City and features over 600 historic structures. Additional information on Warren's history can be found at the Warren County Historical Society.