TWG predecessors and rivals

Habicht - Axworthy, 1947

World Federalist Movement: http://www.wfm-igp.org/

Committee for a Democratic UN (2003-): http://www.kdun.org/

Campaign for a United Nations Parliamentary Assembly (2007-): http://en.unpacampaign.org/

Davis, 1953

World Government of World Citizens: http://www.worldgovernment.org/

Isely - Martin, 1958

World Constitution and Parliament Association (1958-): http://www.radford.edu/gmartin/WCPA%20page.htm

Earth Federation Movement: http://earthfederation.info/

World Constitutional Convention / World Constituent Assembly (1968, 1972, 1979, 1991)

The Constitution for the Federation of Earth: http://www.radford.edu/gmartin/CEF.pdf

Provisional World Parliament (13 sessions, 1982-2012; 14th scheduled Dec.2015): http://worldparliament-gov.org/

List of World Legislative Act: http://www.radford.edu/gmartin/PWP.legis.acts.list.htm

Stark - Stalets, 2004

Vote World Parliament: http://voteworldparliament.org/