Some countries have multiple "supreme courts" whose respective jurisdictions have different geographical extents, or which are restricted to particular areas of law. Some countries with a federal system of government may have both a federal supreme court (such as the Supreme Court of the United States), and supreme courts for each member state (such as the Supreme Court of Nevada), with the former having jurisdiction over the latter only to the extent that the federal constitution extends federal law over state law. However, other federations, such as Canada, may have a supreme court of general jurisdiction, able to decide any question of law. Jurisdictions with a civil law system often have a hierarchy of administrative courts separate from the ordinary courts, headed by a supreme administrative court as is the case in the Netherlands. A number of jurisdictions also maintain a separate constitutional court (first developed in the Czechoslovak Constitution of 1920), such as Austria, France, Germany, Luxembourg, Portugal, Russia, Spain and South Africa. Within the former British Empire, the highest court within a colony was often called the "Supreme Court", even though appeals could be made from that court to the United Kingdom's Privy Council (based in London). A number of Commonwealth jurisdictions retain this system, but many others have reconstituted their own highest court as a court of last resort, with the right of appeal to the Privy Council being abolished.