May Revolution
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| May Revolution | |
|---|---|
 Pedro Subercaseaux · Public domain · source | |
| Name | May Revolution |
| Native name | Revolución de Mayo |
| Date | 18–25 May 1810 |
| Place | Buenos Aires, Viceroyalty of the Río de la Plata |
| Result | Establishment of the Primera Junta; start of Argentine War of Independence |
| Participants | Cornelio Saavedra, Manuel Belgrano, Mariano Moreno, Juan José Castelli, Baltasar Hidalgo de Cisneros |
| Combatant1 | Criollo patriots |
| Combatant2 | Royalist authorities |
May Revolution The May Revolution was a series of political and social events in Buenos Aires from 18 to 25 May 1810 that removed the viceroy Baltasar Hidalgo de Cisneros and established the Primera Junta, initiating the independence process of the United Provinces of the Río de la Plata and sparking the Spanish American wars of independence. It unfolded amid the power vacuum created by the Napoleonic Wars and the abdication of the House of Bourbon monarchs, influencing parallel uprisings in Montevideo, Asunción, and the Upper Peru regions.
Background
The Viceroyalty of the Río de la Plata, created by the Bourbon Reforms under Charles III of Spain, encompassed territories including Buenos Aires, Córdoba, Salta, Charcas, and Paraná ports. The late eighteenth and early nineteenth centuries saw the rise of criollo elites such as Cornelio Saavedra and intellectuals influenced by Enlightenment currents like those of Voltaire, Montesquieu, and the Physiocrats; they engaged in trade through the Port of Buenos Aires and navigated tensions with peninsular officials tied to Spanish Bourbon dynasty patronage. External shocks—the Peninsular War, the capture of Ferdinand VII of Spain by Napoleon Bonaparte, and the establishment of the Junta of Seville—challenged imperial legitimacy and emboldened local juntas in Lima, Chile, and Venezuela.
Prelude and Causes
Immediate causes included the arrival of news about the fall of Bayonne and the Abdications of Bayonne, which discredited the authority of viceroys like Baltasar Hidalgo de Cisneros. Commercial rivalries involving merchants linked to British Empire trade, monoculture interests in La Plata Basin, and disputes over customs duties at the Port of Buenos Aires intensified. Factions coalesced around figures such as Manuel Belgrano and Mariano Moreno who advocated for autonomy influenced by pamphlets and the weekly press like Semanario de la Victoria and Gazeta de Buenos Ayres. The revolutionary current drew inspiration from earlier insurgencies: the American Revolution, the French Revolution, and uprisings in New Spain and Venezuela led by Simón Bolívar’s contemporaries.
The Week of May (Primera Semana de Mayo)
From 18 May to 25 May 1810, public meetings, military demonstrations, and cabildos unfolded across Plaza de Mayo and the streets of Buenos Aires. Key episodes included the open cabildo of 22 May and the mutiny-inspired demonstrations led by militia units under commanders like Cornelio Saavedra and naval officers sympathetic to Manuel Belgrano. Popular sectors—from porteños to artisan guilds—converged with militia battalions such as the Patricios Regiment to pressure Spanish officials including Viceroy Cisneros and the Audiencia of Buenos Aires. The crisis culminated in the public rejection of the viceroyalty’s authority and demands for local governance, echoed in petitions presented at the Cabildo.
Establishment of the Primera Junta
On 25 May 1810 the Cabildo Abierto led to the formation of the Primera Junta, presided by Cornelio Saavedra and including prominent members Manuel Belgrano, Juan José Castelli, Mariano Moreno, and others representing military, intellectual, and commercial interests. The Junta asserted authority in the name of the deposed Ferdinand VII of Spain while exercising autonomous administration over the territories of the former viceroyalty. The new body issued decrees through organs like the Gazeta de Buenos Ayres and dispatched envoy forces to provinces including Upper Peru and Banda Oriental; these actions precipitated armed responses from royalist leaders in Cuzco and Lima.
Immediate Aftermath and Political Consolidation
Following 25 May, the Primera Junta faced counterrevolutionary attempts in Montevideo led by royalist officials and resistance from provincial cabildos in Salta and Potosí. Military campaigns were organized under commanders such as Juan José Castelli and Manuel Belgrano toward Upper Peru; naval operations involved figures tied to the Cisplatine region and the British South American trade. Internal political debates quickly emerged between the conservative military faction around Cornelio Saavedra and the more radical secretariat headed by Mariano Moreno, shaping policies on representation, censorship, and foreign relations with entities like the United Kingdom and revolutionary governments in Chile.
Social and Economic Impact
The revolution altered the social hierarchy in Buenos Aires by elevating criollo militia officers and urban notables while challenging peninsular elites linked to the Casa de Contratación and mercantile houses trading with Seville and Cadiz. Economic measures included attempts to reform customs administration at the Port of Buenos Aires and to redirect commerce toward British ships, affecting estancieros, merchants, and artisans across the La Plata Basin. The rise of the Primera Junta stimulated political clubs and newspapers, influencing social actors such as the Compañía de Jesús’s former members, maritime guilds, and provincial caudillos who later figured in conflicts with federalist leaders like Juan Manuel de Rosas.
Legacy and Historical Interpretation
The events of May 1810 are commemorated in modern Argentina as a foundational episode leading to the Declaration of Independence of 1816. Historiography has debated whether the movement was conservative, seeking localism under Ferdinand VII, or radical, paving a path to republicanism promoted by authors like Bartolomé Mitre and José de San Martín’s biographers. Comparative scholarship links the May events to the broader Spanish American wars of independence and to figures such as Simón Bolívar, José Gervasio Artigas, and Bernardo O'Higgins, emphasizing regional variations in independence trajectories. Memory of the week is institutionalized through symbols like Plaza de Mayo, national holidays, and narratives in the Museo Histórico Nacional.