The Pernambucan revolt of 1817 occurred in the province of Pernambuco in the Northeastern region of Brazil, and was sparked mainly by the decline of sugar production rates and the influence of the Freemasonry in the region. Other important reasons for the revolt include: the ongoing struggle for the independence of Spanish colonies all over in South America; the independence of the United States; the generally liberal ideas that came through all of Brazil the century before, including many French Philosophers, such as Charles Montesquieu and Jean-Jacques Rousseau; the actions of secret societies, which insisted on the liberation of the colony; the development of a distinct culture in Pernambuco.