What is the oldest written source in this country that mentions this right?

Turkmenistan

Article 42 of Turkmenistan’s 1992 Constitution protects press freedom: “Everyone shall have the right to free search of information and to receive and disseminate information in ways not prohibited by law, if it is not a state or other secret protected by law" (Constitute Project, “Turkmenistan’s Constitution of 2008 with Amendments through 2016”).

Freedom of the Press · Country sources (all rights) · Years mentioned: 1992, 2008, 2016 · Last edited 2022-12-28 · Edit on GitHub