The French artist Jean Dubuffet first used the term assemblage to describe a method of turning found objects into three-dimensional structures.

The debate about what is a collage versus an assemblage also began at that time. Dubuffet referred to his butterfly works as assemblages, though art historians seem to prefer the term collage.

The Museum of Modern Art’s 1961 exhibition, “The Art of Assemblage”, established assemblage as a modern technique. This page lists various art shows going on around the world, including museums, galleries, online shows, and online archives.