Baltasar Hidalgo de Cisneros
The news of the fall of the Junta of Seville reached Buenos Aires in May 1810. With both the king of Spain and the Junta removed of power, many people thought that Cisneros had no legitimacy to govern, starting the May Revolution. Cisneros tried to calm down the population, to no avail. He called the commanders of the local armies and requested their support, but they denied it. Cisneros was ultimately forced to allow an open cabildo, which would discuss what to do. Although those meetings were usually composed of the wealthiest population, the army and a group of rioters plotted to prevent the entry of many wealthy people and allow common people instead.
Historiography of the May Revolution
The first remarkable historiographical school of interpretation of the history of Argentina was founded by Bartolomé Mitre, in his book "Historia de Belgrano y de la Independencia Argentina". Mitre regarded the May Revolution as an iconic expression of political egalitarianism, the conflict between modern freedoms and oppression represented by the Spanish monarchy, and the attempt to establish a national organization on constitutional principles as opposed to the leadership of the caudillos. Mitre introduced the idea that the nation of Argentina existed prior to 1810, and that it was subjugated up to that point by the Spanish authorities.