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

Nauru

Nauru’s 1968 Constitution does not contain explicit protections for press freedom, but does protect freedom of expression (Constitute Project, “Nauru’s Constitution of 1968 with Amendments through 2015”).

Freedom of the Press · Country sources (all rights) · Years mentioned: 1968, 2015 · Last edited 2022-12-28 · Edit on GitHub