our ancestors were definitely interacting with the nanyue. the biggest proof is the she people. she people are genetically and linguistically similar to hmong people. they are all over the eastern provinces from guandong (hong kong) north to zhejiang (shanghai). this area is also the ancestral lands attributed to the nanyue.
when we look at the expansion of the hmong ancestors from daxi culture, it takes us east then north like our oral history tells us and makes complete sense geographically. being rice cultivators, our ancestors needed lots of water and flat land (no terracing yet). its reasonable then that they expand along the yangtze east (plenty of water) where they would eventually meet the nanyue's. why then go north and not south? simple, geography. immediately south all along the yangtze are mountains, bad for rice cultivation at the time. to the north are flat lands and big lakes very suitable for rice. if you look at a map of modern china, all along the eastern provinces from the yangtze are huge lakes and big sources of water leading all the way north to the yellow river, perfect to grow rice. no doubt this is the route our ancestors took north where we eventually met up with the chinese.
daxi culture (4500-3000bc) was followed by the qujialing culture (3000-2600bc). qujialing culture reached southern shaanxi, northern jiangxi and southwest henan. our hmong ancestors had reached all the way east and northeast to the longshan culture (3000-2000bc) around the yellow river. distinctive traits of longshan culture are: rice cultivation, walled cities and black pottery (or egg-shell pottery), the same kind discovered in the yangtze river valley, all traits reminiscent of the cultures associated with our ancestors.http://blog.163.com/photor@126/blog/static...lAdminPriv=truehttp://en.wikipedia.org/wiki/Qujialing_culturehttp://en.wikipedia.org/wiki/Longshan_culture