At 4,500 B.P., this "Neolithic package" suddenly arrived in Indochina from the Lingnan area without cereal grains and displaced the earlier pre-Neolithic hunter-gatherer cultures, with grain husks found in northern Indochina by 4,100 B.P. and in southern Indochina by 3,800 B.P.
æt fˈoːɹ,fˈaɪvhˈʌndɹɪd bˈiː.pˈiː., ðˈɪs "nˌiːoʊlˈɪθɪk pˈækɪdʒ" sˈʌdənli ɚɹˈaɪvd ɪn ˌɪndoʊtʃˈaɪnə fɹʌmðə lˈɪŋnən ˈɛɹiə wɪðˌaʊt sˈiəɹɪəl ɡɹˈeɪnz ænd dɪsplˈeɪst ðɪ ˈɜːlɪɚ pɹˈiːnˌiːoʊlˈɪθɪk hˈʌntɚɡˈæðɚɹɚ kˈʌltʃɚz, wɪð ɡɹˈeɪn hˈʌsks fˈaʊnd ɪn nˈɔːɹðɚn ˌɪndoʊtʃˈaɪnə baɪ fˈoːɹ,wˈʌnhˈʌndɹɪd bˈiː.pˈiː. ænd ɪn sˈʌðɚn ˌɪndoʊtʃˈaɪnə baɪ θɹˈiː,ˈeɪthˈʌndɹɪd bˈiː.pˈiː.