The Catholic Church sold indulgence's to the citizen's, therefore missionaries we're paid with the money that the people bought with the indulgence's. 2. Missionaries helped the Catholic Church respond in hopes of growing and overthrowing the pope.
Because its location made it the crossroads of Europe and Asia.
Depending on a few factors, Yes Nationalism is a positive force. When under control and in reason Nationalism only offends people who hate or dislike your Nation. Left unchecked and you will have evil people who want to abuse the peoples nationalism like Germany for example. That is what happens if you leave Nationalism unchecked and someone abuses the peoples spirits. If you need additional help or explanation Just let me know im here to help out.
Because of the salt march. :D