In 1881, in the midst of attacks of the nation-states on the Catholic Church, Pope Leo XIII (reigned 1878-1903) issued the encyclical Diuturnum on the authority of civil governments. In it, he lays down the source and the scope of that authority. Far from being an anarchistic document or demanding the establishment of a theocracy, Pope Leo XIII indicated that a legitimate government with legitimate laws has the right to be obeyed. However, that government does not have absolute authority over every aspect of life. There are paths which a government might be tempted to take but, if they make that decision, their authority vanishes. His encyclical, Diuturnum, says:
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