May Revolution
The May Revolution was a direct reaction to Spain's Peninsular War. In 1808, King Ferdinand VII of Spain abdicated in favor of Napoleon, who granted the throne to his brother, Joseph Bonaparte. A Supreme Central Junta led resistance to Joseph's government and the French occupation of Spain, but eventually suffered a series of reversals that resulted in the Spanish loss of the northern half of the country. On February 1, 1810, French troops took Seville and gained control of most of Andalusia. The Supreme Junta retreated to Cadiz and dissolved itself, and the Council of Regency of Spain and the Indies replaced it. News of these events arrived in Buenos Aires on May 18, brought by British ships.
Historiography of the May Revolution
Meanwhile, Esteban Echeverría epitomized the ideals of May in the concepts of progress and democracy. In the future, these concepts would be the axis around which revisionist history would differ from the canonical history in reference to the events of May. The canonical version claimed progress and justify the abandonment or delay the realization of democratic ideals in order not to risk the economic prosperity of society arguing that even then was not able to properly take advantage of political freedom. This situation was known as the establishment of the "Possible Republic." Mitre and Echeverría were part of the '37 Generation, a group of romantic authors born during the revolution itself and formed in the local context generated after it. Those authors did not work purely in intellectual fields, but took instead active part in the political events of their time, and strongly opposed the governor Juan Manuel de Rosas. They were closer to the unitarians than to the federalists, but were not fully unitarians either: they thought that it wasn't enough to apply directly the new ideas generated in Europe or the United States, but instead to adapt them to the local contexts of the Río de la Plata. They choose the May Revolution as the point to mark the birth of the nation because of their rejection to the Spanish or aboriginal cultures.