 Mansfield is the place where the first night football game was played under electric lights, on September 28, 1892 sponsored by the Edison Illuminating Company.The 1892 Wyoming Seminary vs. Mansfield State Normal football game is celebrated in an annual festival which celebrates the 1890s.The number of people living here in 1900 amounted to 1,847, and in 1910, 1,654.The population was 3,411 at the 2000 census.