The territory in which Dormont Borough is situated was held by the Delaware and Shawnee tribes until 1768 when the territory was part of the transaction in which Fort Stanwix was purchased from the Six Nations. In following years, Dormont’s area was part of Cumberland County, Pitt Township in Bedford County, Penn Township in Washington County, and finally, St. Clair Township in Allegheny County in 1788. Dormont was originally fashioned as a borough from parts of Scott and Union Townships. An order of incorporation was signed on March 31, 1909, making Dormont the first independent municipality in the South Hills of Allegheny County. Municipal officials initially wanted to name the new community "Mt. Lebanon", however objections were raised by their as yet unincorporated neighbors to the south who eventually adopted the name. Instead the name Dormont was chosen from the Americanized version of the French term "mont d'or", loosely translated as Mountain of Gold. The first election of Borough officials was held on April 27, 1909. Dormont later annexed part of Scott Township in 1909, two additional parts of Union Township in 1913 and 1916, and a portion of Mt. Lebanon Township in January of 1921, giving it a total area of just less than one square mile. With the construction of the streetcar tunnel and the Liberty Tunnels came rapid development and a great increase in population. Through the years, the convenience of the borough, plus the amenities offered its residents, has kept it densely populated. Its citizens enjoy one of the largest swimming pools in Pennsylvania (>60,000 square feet), two parks, basketball and tennis courts, two Little League fields, a fine library, an impressive volunteer-built children’s playground, as well as seasonal activities for both children and adults. "Dormont Day", the annual Fourth of July park-wide event, is the highlight of the summer season and features all day family entertainment beginning with the 8:00AM Twenty-One Gun Salute and culminating with one of the most spectacular fireworks displays for a community of this size. During the day park goers are treated to live music, picnics, food booths, games, pony rides, Little League All-Star games and free buttermilk (an odd tradition dating back many decades). In the early 1990s, a newly elected mayor desired to work full time. Space in the old municipal building was tight, and an argument involving the mayor claiming the chief of police's work space led to accusations of battery and libel between them. Source: http://en.wikipedia.org/wiki/Dormont%2C_Pennsylvania