Freedom of Religion/History/Country sources/Spain
What is the oldest written source in this country that mentions this right?
Spain
Freedom of religion is established within the Constitution and established a secular state. The Catholic Church, however, has established itself as a central player within Spanish politics, with its prominent role in the People's Party. It also has special privileges within Spanish society (U.S. Department of State, "SPAIN 2018 INTERNATIONAL RELIGIOUS FREEDOM REPORT").