The Olmec was an ancient American civilisation that lived in what is now modern-day Mexico, around the states of Tabasco and Veracruz, and they survived from about 1,600 - 350 BCE.
The Olmec were famous for building large 20-ton stone heads in the shape of their rulers to represent them. The word Olmec comes from the word rubber people in the Aztec language, as the Olmec would trade rubber with other civilisations for goods.
The Olmec was one of the first major civilisations in Mexico.
As stated above, the name Olmec comes from the word rubber people, meaning it could have been one of the first civilisations to be able to turn the sap from the rubber tree into usable materials by hardening, shaping and curing it.
The Olmec didn't have a written language so it is speculated it was an oral one and unwritten.
They appeared roughly around 1600 BCE, the Olmecs were one of the first Mesoamerican civilisations, they were famous for carving structures out of a special volcanic rock named Basalt.
They are also speculated they have influenced future civilisations like the Mayans, and to be the creators of the Mesoamerican ballgame, or the Mayan death-ball games played with rubber balls and the game which was a form of ritual bloodletting.
They hardly kept written records and documents about their customs or beliefs, but it is well known that they had extensive trade routes since archeologists could find the Olmec's traded goods all around Mesoamerica.
Often trading Obsidian and Jade with people outside the gulf of Mexico, most of the Oaxaca and what is now the country of Guatamala in the south.
While the obsidian came from the Mexian highlands in the north, along with this trade it helped them make trade routes in Mesoamarica larger snd more complicated.