2000 B.C.
2000 B.C. (approx.): Ortoiroid Indians migrate from South America into the Lesser Antilles and Puerto Rico, introducing the Archaic age. Their arrival marked a shift toward more diverse toolsets and specialized foraging techniques. Significance: Expanded regional networks and introduced diversified stone tool technologies. Nuance: Rouse emphasizes that island settlement patterns followed maritime corridors — canoe mobility shaped cultural diffusion more than overland contact
Source · p. 51,62
Rouse, The Tainos, 51,62