During the early 19th century, slavery expanded rapidly in Brazil, Cuba, and the United States, while at the same time the new republics of mainland Spanish America became committed to the gradual abolition of slavery. During the Spanish American wars for independence (1810–1826), slavery was abolished in most of Latin America, though it continued until 1873 in Puerto Rico, 1886 in Cuba, and 1888 in Brazil (where it was abolished by the "Lei Áurea", the "Golden Law"). Chile declared freedom of wombs in 1811, followed by the United Provinces of the River Plate in 1813, Colombia and Venezuela in 1821, but without abolishing slavery completely. While Chile abolished slavery in 1823, Argentina did so with the signing of the Argentine Constitution of 1853. Peru abolished slavery in 1854. Colombia abolished slavery in 1851. Slavery was abolished in Uruguay during the "Guerra Grande", by both the government of Fructuoso Rivera and the government in exile of Manuel Oribe.