Constitution of Nigeria restored democratic rule to Nigeria, and remains in force today. In January 2011, two amendments of the 1999 constitution were signed by President Goodluck Jonathan, the first modifications since the document came into use in 1999. http://nigerianfinder.com/historical-development-of-the-nigerian-constitution/ Constitution of Nigeria The Constitution of Nigeria is the supreme law of the Federal Republic of Nigeria. Nigeria has had a series of constitutions. The current constitution was enacted on 29 May 1999, inaugurating the Nigerian Fourth Republic. Nigeria's first constitutions were enacted by order in council during the colonial era, when the country was administered as a Crown Colony. The constitutions enacted
Head of state It could be argued that the strengthening of the Prince's powers, vis-a-vis the Landtag (legislature), has moved Liechtenstein into the semi-presidential category. Similarly the original powers given to the Greek President under the 1974 Hellenic Republic constitution moved Greece closer to the French semi-presidential model. Another complication exists with South Africa, in which the President is in fact elected by the National Assembly (legislature) and is thus similar, in principle, to a head of government in a parliamentary system but is also, in addition, recognized as the head of state. The offices of President of Nauru and President of Botswana