The Constitution of the Argentine Nation (Constitución de la Nación Argentina) is the basic governing document of Argentina, and the primary source of existing law in Argentina. Its first version was written in 1853 by a constitutional assembly which gathered in Santa Fe; the doctrinal basis was taken in part from the United States Constitution. It was then reformed in 1860, 1866, 1898, 1949, 1957 (which mainly repealed the 1949 reform), and the current version is the reformed text of 1994. It's the seventh oldest national constitution currently in effect being ratified on May 1, 1853. The Argentine Constitution consists of a preamble and two normative parts: Preamble First part: Declarations, Rights and Guarantees (arts. 1-43) Second part: Authorities of the Nation (arts. 44–129). The following international human rights instruments —treaties and declarations— also have constitutional status by virtue of article 75 paragraph 22: American Declaration of the Rights and Duties of Man Universal Declaration of Human Rights American Convention on Human Rights International Covenant on Economic, Social and Cultural Rights International Covenant on Civil and Political Rights Optional Protocol to the International Covenant on Civil and Political Rights Genocide Convention International Convention on the Elimination of All Forms of Racial Discrimination Convention on the Elimination of All Forms of Discrimination Against Women United Nations Convention against Torture Convention on the Rights of the Child Inter-American Convention on Forced Disappearance of Persons Convention on the Non-Applicability of Statutory Limitations to War Crimes and Crimes Against Humanity Convention on the Rights of Persons with Disabilities The first attempt to divide political power in Argentina was during the government created after the May Revolution (Spanish: Revolución de Mayo): the Primera Junta could not create new taxes without the Cabildo'''s authorization.