TWG predecessors and rivals

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)

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