What did the Church do to Martin Luther in 1521? Why?

In 1521, the pope excommunicated him, and he was called to appear before the emperor at the Diet of Worms to defend his beliefs. Refusing to recant or rescind his positions, Luther was declared an outlaw and a heretic.

Hope this helps.

i think it would be reparing roads  

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.