A series of large mounds in northeastern Nigeria, which constitute the remains of early farming villages on the southern flood plain of Lake Chad and were occupied from about 600 BC-1200 AD. For the first five centuries, the Daima people only had polished stone axes and tools of bone, plus stone grinders and querns. There is pottery present from first occupation and evidence of domesticated cattle, sheep, and goats. Cultivation of sorghum was important, as was hunting and fishing. Iron was introduced the 1st-6th centuries AD. Some centuries later, however, Daima became part of a more wide-ranging trade system.