Athens Charter (preservation)
The Athens Charter for the Restoration of Historic Monuments is a seven-point manifesto adopted at the First International Congress of Architects and Technicians of Historic Monuments in Athens in 1931. == Manifesto == The Athens Charter for the Restoration of Historic Monuments was produced by the participants of the First International Congress of Architects and Technicians of Historic Monuments.
Source: Wikipedia — Athens Charter (preservation) (CC BY-SA 4.0)