Student activism or campus activism is work by students to cause political, environmental, economic, or social change. Although often focused on schools, curriculum, and educational funding, student groups have influenced greater political events. Extreme forms of student activism include suicide such as the case of Jan Palach's, and Jan Zajíc's protests against the end of the Prague Spring and Kostas Georgakis' protest against the Greek military junta of 1967–1974.