Permanent settlements increase in number and size, probably the result of greater contact with peoples from the north—Mesoamerica—and the south—Colombia in northern South America. Trade and communication networks appear to be well established. Impressive quantities of luxury goods in elite burials indicate growing distinctions of social class, with a concentration of valued objects in fewer hands. Several new polychrome ceramic styles appear. Jade and greenstone carvings, important status markers for over a thousand years in north-central Costa Rica, cease to be made, and gold, abundant in alluvial deposits in the region’s rivers, becomes the preferred material for the manufacture of prestige items.