The Argentine Constitution of 1853 was an attempt to unite the unstable and young country of the United Provinces of the Río de la Plata under a single law, creating as well the different organisms needed to run a country.
This constitution was finally approved after failed attempts in 1813 (see Assembly of 1813), 1819 and 1831 (Pacto Federal).
The first Civil Code was written by Argentine jurist Dalmacio Vélez Sársfield, and came into effect on January 1, 1871 and remained law until 1 August 2015, when it was replaced by a new Civil and Commercial Code - Código Civil y Comercial de la Nación.
The sources of this Civil Code also include various theoretical legal works, mainly of the great French jurists of the 19th century.
The new Código Civil y Comercial de la Nación[3] brings many changes, in particular the modernization of family law.