Águas de São Pedro–São Paulo 1941 chess tournament
The Águas de São Pedro International Tournament () was a chess tournament held from 2 to 26 July 1941 in Águas de São Pedro and São Paulo. The event, the first international chess tournament of Brazil, was organized by the São Paulo Chess Club and sponsored by Antonio and Octavio Moura Andrade, being the latter founder of Águas de São Pedro and owner of the "Grande Hotel".
Santa Bárbara d'Oeste
Margaret Grace Martins, widow of sergeant major Francisco de Paula Martins, bought one of those allotments, measuring two leagues square, whose boundaries were the Piracicaba river to the north and by Quilombo Creek to the northeast. On the site, she founded a sugar plantation, putting her son, Captain Manoel Francisco Grace Martins, in charge of administering the property. In 1818, she initiated the formation of a settlement and the construction of a chapel, dedicated to Saint Barbara. Martins donated the lands the city would develop on, making the town the first and only Brazilian city founded by a woman. The chapel was dedicated on 4 December 1818, now considered to be the date of the town's founding.