The Tumulus culture which followed the Únêtice , and from which they descended, dominated central Europe during much of the second part of the second millenium B.C.E.. As the name implies, the Tumulus culture is distinguished by the practice of burying the dead beneath burial mounds. During this period, trade contacts with the south-east remained intact and were probably expanded. The Tumulus culture flourished without any disruption of local peoples by large-scale immigration. This was to end, however, toward the close of the second millennium B.C.E., when there is evidence of wide-spread disruption which affected the "higher civilizations" to the south-east and curbed trade.