For 10 points, identify this ancient civilization of Mesoamerica, best known for their colossal stone heads.
Notable creations of this civilization include the Kunz Axe which shows a figure crossing its arms and a child holding a were-jaguar in the Las Limas Monument.  Some scholars have hypothesized that their most famous relics also doubled as thrones, and their writing system is demonstrated on the Cascajal Block at their site at San Lorenzo.  They constructed a Great Pyramid at La Venta, and they are named for the Nahuatl word for "rubber people", as they probably originated the ballgame.  For 10 points, identify this ancient civilization of Mesoamerica, best known for their colossal stone heads.
Notable creations of this civilization include the Kunz Axe which shows a figure crossing its arms and a child holding a were-jaguar in the Las Limas Monument.  
{Olmec} Civilization