Freedom of Religion/History/Country sources/Japan
What is the oldest written source in this country that mentions this right?
Japan
Article 28 of the 1889 Japan Constitution stated: "Japanese subjects shall, within limits not prejudicial to peace and order, and not antagonistic to their duties as subjects, enjoy freedom of religious belief." Article 20 of the 1946 Constitution offered a more detailed discussion of freedom of religion: "Freedom of religion is guaranteed to all. No religious organization shall receive any privileges from the State, nor exercise any political authority. No person shall be compelled to take part in any religious act, celebration, rite or practice. The State and its organs shall refrain from religious education or any other religious activity."
References:
1889 Japan Constitution: https://constituteproject.org/constitution/Japan_1889
1946 Japan Constitution: https://japan.kantei.go.jp/constitution_and_government_of_japan/constitution_e.html