Analysis of information sources in references of the Wikipedia article "Misiones Province" in English language version.
On December 22, 1881, preparations for federalizing Misiones were completed and the area was declared a national Territory.
In 1953 the National Territory of Misiones became a province and, when in 1958 its constitution was approved, state-building in the region was officially over.
In 1876, the Argentine government enacted its first immigration law, Law No. 817 of Immigration and Colonization, popularly known as the Avellaneda Law, which incorporated the protection of foreigners that had been enshrined in the law and reflected the constitutional principles of openness toward foreigners and enjoyment of rights on an equal basis with citizens.[...] During the period between 1869 and 1914, millions of primarily European immigrants arrived in Argentina.