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.
May Assembly
May Assembly () was the national assembly of the Serbs in Austrian Empire, held on 1 and 3 May 1848 in Sremski Karlovci, during which the Serbs proclaimed autonomous Serbian Vojvodina. This action was later recognized by the supreme Austrian authority in Vienna. May Assembly was part of the European Revolutions of 1848.