 Later, "retablos" evolved to include daily scenes in the lives of the Andean people, such as harvests, processions, feasts, and tableaux depicting shops and homes.The use of wood for the outside box remained, but other materials, such as gypsum, clay, or a potato-gypsum-clay paste mix, were increasingly used for the figures because of their ease of handling and durability.In the 1940s more and more artists were using "retablos" as a vehicle for affirming and recording the distinct identity of the Indigenous people of the Andean region.