TSB is the academic and professional education branch of the Ausbildungs- und Tagungszentrum Bienenberg (ATB), the Study and Conference Centre Bienenberg. It is rooted in the Anabaptist-Mennonite tradition which can trace its roots back to the European Reformation. The tradition is part of the historic peace church movement which has a distinctive commitment to social responsibility and engagement in issues of peace and reconciliation. The theological seminary demonstrates this commitment through its emphasis on peace throughout its theological curriculum, its regular symposia on peace theology and, for example, its membership in the Church and Peace Network. ATB was founded in 1950 as the European Mennonite Bible School in Basel by the Mennonite Churches of France, Germany and Switzerland supported by Mennonite Central Committee. ATB grew steadily in the 1950s and bought the Bienenberg campus in Liestal (ca. 10 km from Basel) in 1957. As the school grew in the 1960s and 70s new buildings including a library and student housing were provided on the site. ATB now has the capacity to host educational programs for up to one hundred students.ATB has always offered programs in French and German and TSB continues to have two distinct language departments.