Define the word federalism

Federalism is a system of government in which the same territory is controlled by two levels of government. ... Both the national government and the smaller political subdivisions have the power to make laws and both have a certain level of autonomy from each other.

the protestant reformation's started in 1517, disturbing the religious and political order in europe´s catholic countries. the outcome was the european wars of religion prosecuted in europe in the 16th, 17th and part of the 18th century. nonetheless, uprisings, territorial disputes, and great power conflicts were also causes of the wars.