The origin of the name comes from the Tupi words uyba(arrows or canoes) and tuba (many). Ubatuba was the place where the Portuguese signed the first treaty of peace of the Americas with the Tupinamba Indians, a treaty that keep Brazil in the Portuguese hands, with one language and one faith. Back in the 16th century the Tupinamba families had been put into slavery by the Portuguese to work in sugar cane plantations in the South, in the surroundings of the city of Saint Vincent. The Tupinamba answered to this outrage with a powerul confederation - The Tamoio Confederation - that could destroy Saint Vincent with the help of the French who had founded a colony before the foundation of Rio de Janeiro in the Guanabara Bay, named The Antarctic France. The Portuguese counted on the Jesuits Priests, Fathers Anchieta and Nobrega, who were sent to Ubatuba (a tribe named Yperoig) to make peace with the Indians. Anchieta was kept as a hostage and Nobrega got back to Saint Vincent with the Chief Cunhambebe to make arrangements for the final Treaty. The Portuguese won, destroying the Antarctic France and keeping the land. If the French had won, the history could have been another one: where there are the States of Rio and São Paulo nowadays, there could be a huge French department or another French speaking country.