Águas de São Pedro
Recognizing the importance of the thermal springs in the region, the São Paulo State Government on 19 June 1940 founded the (Hydromineral and Climatic Spa of Águas de São Pedro). Despite this, the city celebrates its birthday on 25 July, the date in 1940 of the founding of the first major building in the city, the "Grande Hotel" (now "Grande Hotel São Pedro"). The municipality of Águas de São Pedro was incorporated by State Law No.233, of 24 December 1948.
Santo André (Santiago do Cacém)
According to Father António Macedo e Silva, a precious source of information about the municipality of Santiago do Cacém, Santo André was created after other parishes in the municipality, either during the reign of D. João I (1385–1433) or during the reign of D. Duarte (1433–1438). All the rural parishes of this time, except for Santo André, already existed in the year of 1528.
Either created in the 15th century or not, it is known for a fact that the parish already existed in the 16th century, with half a dozen houses that lived in the shadow of the Church who had given name to this place and whose population lived of the exploration of the lagoon, soil and fair commerce.