They began in 1815 and they caused serious damages to the small town. The Uruguayan commander José Gervasio Artigas and their troops occupied the county and the town of the Rosario's Chapel. However, it was evicted in little time and the territory was subordinate again to the authorities of Buenos Aires. The following year the maneuver repeated twice. The worst moment took place at the end of 1818, when it occupied the town the colonel Juan Ramón Balcarce to the control of a Buenos Aires army. In January of 1819, after being attacked by the forces. santafesinas to the brigadier's control Estanislao López, Balcarce retired after fastening fire to the village. With this action a pearly of deep differences began, as the apparent thing a writing of the general Mitre: This straw fire lit hates interprovinciales that have lasted more than half century .

The end of the civil wars and the consolidation of the brigadier's provincial government Estanislao López, Patriarch of the Federation , they marked the beginning of better times for Rosario, in spite of the official negative of considering it city, like their inhabitants sought: only declared it to him Illustrious and faithful Villa, in 1823.

This period marked landmarks in the progress rosarino. In 1852, finally, Rosario was declared city and, after being decreed the Regulation of the Ríos' Free Sailing, it enabled it to him as port of the Confederation Argentina, with own Customs. - In that time they also began to arrive immigrants' contingents.

For those days the streets were known by the main neighbor's last name, until, in 1853, they were given names and the first urban plane rose, carried out by the American architect Timoteo Guillón.

In the decade of 1860 you began to pave the streets, to light with gas and to spread the rails of the railroad until the city of Córdoba.

In 1867 the bid began to declare to capital Rosario of the Republic, initiative that was vetoed then by the President Domingo F. Sarmiento, in spite of having been approved previously by the Congress of the Nation. Toward 1870 the city had 25.000 inhabitants.

This Area experienced a strong flow inmigratorio that saturated for the most part in Rosario. Those recently arrived ones were devoted to develop the commercial activity and to begin the industrial one that at the beginning was subsidiary of the agricultural production. Floury mills were created - whose products in many cases ended up being exported -, factories of noodles and bakeries, among others. The increase of the population's purchasing power facilitated the development of other industrial branches that, in its majority, they occupied matter it prevails cared.

The substantial installed motive force, composed by machinery to vapor, gave faith of their enormous industrial capacity, in particular the metalúrgica. This would form the base of the development that took place presently century. In 1890 160 factories and shops already existed, with a power of between 10 and 25 hp each one. At the little time, she would increase up to 60 hp. The first Argentinean factories of electric bells were among these industries, machines of sewing, you cook economic, motors to vapor of to 8 hp and the factory The Industrial one that produced ammunition and lead pipes for gas and water current.

During the last two decades of that century, Rosario lived an express urban development that converted it, when arriving the year 1900, in the second city of the Republic, with almost 110.000 inhabitants. In a tract of two blocks of San Martin a small city existed, with seven banks, agencies of sure and branches of the most important bank houses in the world.

The economic progress and the hearth of races that it originated the alluvium inmigratorio were plasm-two with clarity in the rich and varied architectural styles that are noticed in the city. It was built from the English, sober and simple chalet, until the coquettish one, surrounded of gardens or forests; from the house with roof, of cooked mud, until that of marble, with vestibules and artistically decorated rooms; from the wide and vast building of columns, regal and severe, until the palace of several plants and numerous bodies, with big marble perrons. This eclecticism, absorbed of good grade for the inhabitants of ends of last century and beginnings of the current one, it is one of the most distinctive features in the city.