December 1992 referendum to join the European Economic Area, with 50.3% of voters opposed. Swiss voters rejected EU membership in a March 2001 referendum, with 76.8% opposed. Despite Swiss opposition to joining the EU, voters have accepted bilateral agreements with the union. In a May 2000 referendum, for example, Swiss voters approved such agreements. In a June 2005 referendum, Swiss voters approved joining the Schengen Area. In February 2014, Swiss voters approved a referendum to reinstitute quotas on immigration to Switzerland, setting off a period of finding an implementation that would not violate the EU's freedom of movement accords that Switzerland adopted. Switzerland co-founded the European Free Trade Association in 1960, which is a parallel organization to the EU. Notes and references Further reading Bonjour, E., H. S. Offler, G. R. Potter. A Short History of Switzerland (1952) online Church, Clive H., and Randolph C. Head. A Concise History of Switzerland (Cambridge University Press, 2013). pp 132–61 online Codevilla, Angelo M. Between the Alps and a Hard Place: Switzerland in World War II and the Rewriting of History (2000) excerpt and text search Dawson, William Harbutt. Social Switzerland: Studies of Present-day Social Movements and Legislation (1897) 302 pp; with focus on social and economic history, poverty, labour online Fahrni, Dieter. An Outline History of Switzerland. From the Origins to the Present Day (8th ed. 2003, Pro Helvetia, Zürich). Lerner, Marc. A Laboratory of Liberty: The Transformation of Political Culture in Republican Switzerland, 1750–1848 (Brill, 2011). Luck, James Murray. A History of Switzerland. The First 100,000 Years: Before the Beginnings to the Days of the Present. SPOSS, Palo Alto CA. (1985) Lüthi, Barbara, and Damir Skenderovic, eds. Switzerland and Migration: Historical and Current Perspectives on a Changing Landscape (Springer, 2019). Oechsli, Wilhelm. History of Switzerland, 1499–1914 (1922) full text online Schelbert, Leo. Historical Dictionary of Switzerland (2007) excerpt and text search External links Swiss Diplomatic Documents (DDS) Switzerland Modern history 19th century in Switzerland 20th century in Switzerland