Frustrated with politics, Weber resumed teaching during this time, first at the University of Vienna, then, after 1919, at the University of Munich.[6][5][11] His lectures from that period were collected into major works, such as the General Economic History, Science as a Vocation, and Politics as a Vocation.[6] In Munich, he headed the first German university institute of sociology, but never held a professorial position in the discipline. Many colleagues and students in Munich attacked his response to the German Revolution, while some right-wing students held protests in front of his home.[16]