The May Revolution ( ) was a week-long series of events that took place from May 18 to 25 , 1810 , in Buenos Aires , capital of the Viceroyalty of the Río de la Plata .
The May Revolution happened from May 18 to 25 , 1810 , in Buenos Aires . Buenos Aires was the capital of the Viceroyalty of the Río de la Plata .