Making up for lack of written records, archaeologists have to date uncovered 273 Amerindian archeological sites on only 310 km² of the land recovered from the Sinnamary River by the Petit-Saut Dam. Some date back as far as two thousand years, establishing the antiquity of the Amerindian presence in this area.
Saladoid culture is a pre-Columbian indigenous culture of territory in present-day Venezuela and the Caribbean that flourished from 500 BCE to 545 CE. Concentrated along the lowlands of the Orinoco River, the people migrated by sea to the Lesser Antilles, and then to Puerto Rico.
The Botai culture is an archaeological culture (c. 3700–3100 BC) of prehistoric Kazakhstan and North Asia. It was named after the settlement of Botai in northern Kazakhstan. The Botai culture has two other large sites: Krasnyi Yar, and Vasilkovka.