A few centuries later, Proto-Southern New England Algonquian (PSNEA) diverged into the SNEA languages. This development might coincide with the success of new strains of the tropical maize plant better suited to northern climes and the increased use of coastal resources around 1300 AD, during the Late Woodland Period. The improvement to agriculture supported large populations in the arable lands near the coast or along the larger rivers. Population movements seem to indicate the spread of the language from southeastern New England, spreading it into Connecticut and northward. Competition over resources, more sedentary and permanent habitations and an influx of small migrations from the north and southwest probably fueled territoriality which may be evidenced by newer pottery styles with restricted local production areas. Shortly after this time, the languages, peoples and technologies would have likely been recognizable to the Europeans that began visiting the coasts at the end of the sixteenth century.