[1] After the project was approved by Salvador Allende himself, the Comité Internacional de Solidaridad Artística con Chile (CISAC) (International Committee of Artistic Solidarity with Chile) was formed, bringing together national and international intellectuals such as the Brazilian intellectual Mário Pedrosa and the Italian Carlo Levi.

[3] After the coup d'état on September 11, 1973, the museum was closed, its managers suffered exile, and part of the collection was lost.

[2] Exiled artists including José Balmes, Pedro Miras, and Carmen Waugh, continued to call for donations of artworks to support resistance in Chile, organizing exhibitions that denounced human rights violations throughout Europe.".

Since 2005, the Arte y Solidaridad Foundation has been responsible for managing, disseminating, researching, and activating its collection and historical archive, and the Museum of Solidarity was moved to the Heiremans Palace in the Republic neighborhood of Santiago.

During the Military dictatorship of Augusto Pinochet, the building works as a detention center and a listening station of the DINA.