 Complete the following phrase:  One renowned educational institution in Essen is the Folkwang University, a university of the arts founded in 1927, which is headquartered in Essen and has additional facilities in Duisburg, Bochum and Dortmund. Since 1927, its traditional main location has been in the former Werden Abbey in Essen in the Ruhr area, with additional facilities in Duisburg, Bochum, and Dortmund, and, since 2010, at the Zeche Zollverein, a World Heritage Site also in Essen. The Folkwang University is home to the international dance company Folkwang Tanz Studio FTS. In 1963 the Folkwang school was renamed Folkwang-Hochschule Folkwang Academy. In 2010 the institution began offering graduate studies and was renamed Folkwang University of the Arts. This coincided with 