[1] In February 1527 under the command of the Spanish, the Venetian Sebastian Cabot founded the fort of San Lázaro in the area, but the population quickly succumbed to attacks by the Timbú people, so it was abandoned for two years until September of 1530.
In 1758 the census of Fray Domingo Monzón was carried out, where it was revealed that 194 people lived in the Víboras district.
Juan Francisco Palacios erected the chapel of the town of Las Víboras, in which Fray Fernando Oviedo was the first parish priest.
[2] Years later, in 1815, Father Larrañaga spent the night in the town of Las Víboras, information that can be found in his travel diary from Montevideo to Paysandú.
Then in 1830 he attended the Jura de la Constitución as civil judge of Las Víboras.