Kassel (spelled Cassel until 1928) is a town located on the Fulda River in northern Hesse, Germany. It is the administrative seat of the Kassel Regierungsbezirk and the Kreis of the same name and has approximately 195,000 inhabitants. It is known for the documenta exhibition of contemporary art. In 1964, the town hosted the fourth Hessentag state festival, and is designated for the 53rd in 2013.