<Ul> <Li> Taosi </Li> </Ul> <Tr> <Th> Lower Yellow River </Th> <Td> <Ul> <Li> Houli </Li> <Li> Beixin </Li> <Li> Dawenkou </Li> <Li> Longshan <Ul> <Li> Chengziya </Li> </Ul> </Li> <Li> Yueshi </Li> </Ul> </Td> </Tr> <Ul> <Li> Houli </Li> <Li> Beixin </Li> <Li> Dawenkou </Li> <Li> Longshan <Ul> <Li> Chengziya </Li> </Ul> </Li> <Li> Yueshi </Li> </Ul> <Li> Longshan <Ul> <Li> Chengziya </Li> </Ul> </Li>

Which region did china's earliest civilizations develop