stone representations of human heads sculpted from large basalt boulders.

non-mainstream pseudohistorical theories relating to the formation of Olmec civilization which contradict generally accepted scholarly consensus, which holds that Olmec civilization is entirely indigenous to the region or at least to the New World.

a set of glyphs developed within the Olmec culture.

The religion of the Olmec people significantly influenced the social development and mythological world view of Mesoamerica.