horizon

Once ceramics had been adopted in Mesoamerica, techniques of manufacture and styles of shape and decoration tended to spread rapidly and widely across many cultural frontiers. These rapid diffusions, called horizons, enable archaeologists to link different cultures on the same time level. Good…

…of various “cultures” or “horizons,” distinguished in general by the pottery, which may be classed by its colour, shape, hardness, and, above all, by its decoration. The name of each horizon is derived either from the type site or from the place where the pottery was first found: Sāmarrāʾ…