Avellaneda attained the presidency in 1874 but had its legitimacy contested by Bartolomé Mitre and supported by Domingo Faustino Sarmiento.
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He also included Rufino de Elizalde and José María Gutiérrez, supporters of Mitre, as members of his cabinet.
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In line with people like Alberdi or Sarmiento, who thought that European immigration was crucial to the Argentine development, he promoted the "Avellaneda law" that allowed European farmers ease to get terrains.
Bemberg obtained commissions from Presidents Bartolomé Mitre and Nicolás Avellaneda for the establishment of agricultural colonies in the then-practically undeveloped Santa Fe Province, the site of some of the country's most productive cropland.
Nicolas Sarkozy | Nicolas Cage | Nicolas Poussin | Racing Club de Avellaneda | Nicolas Baudin | Nicolas Roeg | Nicolas Anelka | Nicolas Philibert | Nicolas Léonard Sadi Carnot | Avellaneda Partido | Nicolas Winding Refn | Nicolas Steno | Nicolas Bourriaud | Nicolas | San Nicolás | Nicolas Slonimsky | Nicolas Oudinot | Nicolas Hulot | Nicolas Hodges | Nicolás Guillén | Nicolas Boileau-Despréaux | Nicolas Berggruen | Avellaneda | San Nicolas Island | San Nicolas | Nicolas Louis de Lacaille | Nicolas Ghesquière | Louis Nicolas Vauquelin | Theodore Nicolas Gobley | San Nicolás District, Carlos Fermín Fitzcarrald |
The history museum was designed by Antonio Buschiazzo and was the site of an 1880 treaty signed by President Nicolás Avellaneda and the Governor of the Province of Buenos Aires, Carlos Tejedor, providing for the federalization of the city of Buenos Aires and a more equitable distribution of the rapidly growing customs revenues.