What encouraged social unrest in colonial Latin America during the 1700s?

The Bourbon Reforms, which changed the colonial system to that of an intendancy. These reforms were directed to increase tax revenues; they also became very unpopular as most intendants were peninsulares, or people born in Spain. This increased unrest among criollos or people of Spanish descent born in the Americas who ultimately led -- and won -- all independence wars against their respective home countries.