The Battle of San Lorenzo took place on February 3, 1813, during the Argentine War of Independence. It was fought between the forces of the United Provinces of the Río de la Plata and the Spanish colonial troops. The battle was significant as it marked one of the first major victories for the revolutionary forces, boosting morale and support for the independence movement. The battle was led by General Manuel Belgrano, a key figure in the fight for Argentine independence. His troops successfully defeated the Spanish forces, which helped to solidify the revolutionary cause. This victory contributed to the eventual establishment of an independent Argentina.