Fil:Form of Government.pngwikipedia:en. The original description was: States colour-coded by their form of government as of December 2005 blue - presidential republics, full presidential
Fil:Geological time spiral.pngaccording to scientific estimates. Most of the evidence for an ancient Earth is contained in the rocks that form the Earth's crust. The rock layers themselves—like
Fil:Form of government parliamentary.pngeffectively supreme over a separate head of state. States denoted in green have the roles of head of state and head of government in one office, similar to presidential