The next wave of immigrants was the YAOI ART people, named for the district in Tokyo where remnants of their settlements first were found. These people, arriving in Japan about 350 BCE, brought their knowledge of wetland rice cultivation, the manufacture of copper weapons and bronze bells ("dōtaku"), and wheel-thrown, kiln-fired ceramics. Along with introducing bronze casting and other technologies into the islands, the Yayoi people, who are generally believed to have come from the continent, brought cultural influences from the southern part of China.