Portal:Argentina/Anniversaries/October/October 18
- 1801 Justo José de Urquiza, Argentine general, politician, and president of the Argentine Confederation is born.
- 1832 Tucumán Province signs the Pacto Federal.
- 1891 The Banco de la Nación Argentina is founded by President Carlos Pellegrini.
- 2007 The first phase of the Line H of the Buenos Aires Metro opens.