The missions of the Chaco were a great example of modernization through education and industry. They formed schools for children, schools for trade, industries that provided metal utensils, organs for churches, and pianos. The communities formed with Guarani had certain political freedoms and rights, and participation in decision making processes. In the 18th century, the missions were spread over a large territory (now Brazil, Paraguay and Argentina) and were the most advanced societies in the New World.