Ubatuba was the place where the Portuguese signed the first treaty of peace of the Americas with the
Tupinambá native tribe (The Yperoig Peace Treaty - Tratado de Paz de Iperoig), a treaty that kept Brazil in Portuguese hands, with only one language and one faith (
Catholicism). Back in the 16th century, the Tupinambá families were forced into slavery, working on sugar cane plantations along the Southern Shores surrounding the towns of
São Vicente and
Itanhaém, a region also called "Morpion" at that time (according to
André Thévet -
"Singularités de la France Antarctique"). The Tupinambá responded to this outrage with the
Tamoio Confederation, a powerful military alliance that stood to destroy São Vicente, with the help of the French, who had founded a Protestant refugee colony,
France Antarctique in
Guanabara Bay before the foundation of
Rio de Janeiro. The Portuguese sent two
Jesuit priests, Fathers Anchieta and
Nobrega, to Ubatuba (a tribe named Yperoig), to make peace with the Tupinambá Indians. Anchieta was kept as a hostage and Nobrega returned to Saint Vincent along with the Chief
Cunhambebe to make arrangements for the final Treaty. The Portuguese won, destroying France Antarctique and keeping the land. ==Geography==