"In the Calima region in the Western Cordillera, traces of dwellings, cemeteries, roads, and fields with raised ridges and drainage canals testify to a continuous occupation from 1500 BCE through the sixteenth century. Nonetheless, changes in the archeology of the region, as well as its ceramic and metalworking styles, allows us to distinguish three distinct periods. 
  
The earliest phase, Ilama (in the case behind you), stands out for its fantastical figurative ceramics. During the Yotoco period, rulers exhibited their power in showy jewelry, such as hammered and embossed diadems and pectorals. Similar works were made (and buried in large quantities as part of elite tombs) in the neighboring Malagana region. The final Sonso period marks a shift, notable in the changed ceramic forms, icons, and in metalworking techniques. Metal becomes relatively rare in graves, and is generally cast instead of beaten, while elaborate canasteros (basket-carriers) and double-spouted containers are replaced with more sober vessels and decoration."