What did Omlecs accomplishhments?

The Olmecs, often considered the "mother culture" of Mesoamerica, are known for several significant accomplishments. They developed one of the earliest known complex societies in the region, creating large ceremonial centers like San Lorenzo and La Venta. The Olmecs are also credited with advancements in art, particularly their colossal stone heads and intricate jade carvings, which reflect their sophisticated craftsmanship. Additionally, they contributed to early forms of writing and the Mesoamerican calendar system, influencing later cultures such as the Maya and Aztecs.