History
Charrúa, Guenoa and Chaná peoples hunted these grasslands before the Spanish, and cattle released in the 17th century multiplied into wild herds that drew Portuguese, Spanish and Jesuit mission interests. Villa Soriano, founded in the 1620s as a mission among the Chaná on the Río Negro, is considered by many the oldest town in Uruguay. The Charrúa were ambushed and largely destroyed at the Salsipuedes creek in 1831.
The interior holds many of the independence sites. The revolt against Spain began with the Grito de Asencio near Mercedes in February 1811, and later that year Artigas led thousands of civilians north to cross the Uruguay River near Salto in the exodus remembered as the Redota. In 1825 the Thirty-Three Orientals landed at the Playa de la Agraciada in Soriano, and a congress in Florida declared independence from Brazil on 25 August.
The 19th century brought civil war between Blancos and Colorados and foreign intervention: Paysandú was besieged and taken by Brazilian and Colorado forces in 1864–65. From the 1860s the Liebig company turned Fray Bentos into an industrial meat town, and the Blanco leader Aparicio Saravia's last uprising ended after the battle of Masoller in Rivera in 1904. Rail lines, the Rincón del Bonete dam on the Río Negro in the 1940s and the Salto Grande dam in 1979 remade the region.
In the 1950s and 1960s Raúl Sendic organised the sugar-cane workers of Artigas department, the movement from which the Tupamaros grew. Under the 1973–85 dictatorship nine Tupamaro leaders, José Mujica among them, were held as "hostages" in isolation until 1985.
