What are the Warring City-States

What evidence is there in this document that the policy was a good idea?

How did the church gain secular power? a) monks forced massive numbers of people to convert through fear of punishment. b) the church issued interdicts, laws passed by the church regardless of secular law. c) the church's power to deny the sacraments gave the church power over christians. d) canon law established secular courts under the control of the church.

However the economy continued to grow because of