1971
The Grupo de los Trece (Group of Thirteen) is created in Buenos Aires (Benedit, Grippo, Portillos, Bedel, Glusberg, Marotta, Romero, Dujovny, Ginzburg, González Mir, Pazos, Teich and Zabala).
The Museo de Arte Moderno (MAM) presents Arte de sistemas, with Jorge Glusberg as curator. Important conceptual artists take part of the exhibition. From the local milieu: Grupo de los Trece, Lamelas, Lublin, Renzi, Vigo, etc. From the international scene Acconci, Arakawa, Boltanski, Christo, Gilbert & George, Haacke, Kaprow, On Kawara, Kosuth, Long, Merz, Oppenheim, Venet, etc.
Aldo Paparella begins his series of Useless Monuments. A year later he writes his manifesto, Proposición: la neoescultura en mi tiempo, in which he affirms that creative spirituality is superior to the materialism of the consumer society.