WHAT ALL HAPPENED MARCH TO MAY 1811
Find out what all happened March to May 1811

Battle of Las Piedras: The first great military triumph of the revolution of the Río de la Plata in Uruguay led by Jose Artigas. (18. May 1811)

Percy Bysshe Shelley is expelled from the University of Oxford for publishing the pamphlet The Necessity of Atheism. (25. March 1811)

Peninsular War: The allies Spain, Portugal and United Kingdom, defeat the French at the Battle of Albuera. (16. May 1811)

Paraguay: Pedro Juan Caballero, Fulgencio Yegros and José Gaspar Rodríguez de Francia start actions to depose the Spanish governor (14. May 1811)

In the second day of fighting at the Peninsular War Battle of Fuentes de Oñoro the French army, under Marshall André Masséna, drive in the Duke of Wellington's overextended right flank, but French frontal assaults fail to take the town of Fuentes de Onoro and the Anglo-Portuguese army holds the field at the end of the day. (5. May 1811)

Paraguayan forces defeat Manuel Belgrano at the Battle of Tacuarí. (9. March 1811)

Leaders of the Mameluke dynasty are killed by Egyptian ruler Muhammad Ali. (1. March 1811)

Argentine War of Independence: A royalist fleet defeats a small flotilla of revolutionary ships in the Battle of San Nicolás on the River Plate. (2. March 1811)

Peninsular War: A day after a successful rear guard action, French Marshal Michel Ney once again successfully delayed the pursuing Anglo-Portuguese force at the Battle of Redinha. (12. March 1811)

Paraguay declares independence from Spain. (15. May 1811)

Peninsular War: A French force under the command of Marshal Victor is routed while trying to prevent an Anglo-Spanish-Portuguese army from lifting the Siege of Cádiz in the Battle of Barrosa. (5. March 1811)

During André Masséna's retreat from the Lines of Torres Vedras, a division led by French Marshal Michel Ney fights off a combined Anglo-Portuguese force to give Masséna time to escape. (11. March 1811)