Kuwunika kukuwonetsa kuti kholo lina lodziwika bwino la zilankhulo za Indo-European, zomwe zimaphatikizapo Chingerezi ndi Sanskrit, mwina zidalankhulidwa zaka 8,100 zapitazo.
Asayansi, kuphatikizapo a Max Planck Institute for Evolutionary Anthropology ku Germany, anena kuti kafukufuku wawo ndi “chipambano chachikulu” pomvetsetsa chiyambi cha zilankhulo za ku Indo-European, mkangano womwe unapitilira kwa zaka pafupifupi mazana awiri.
Ziphunzitso ziwiri zaperekedwa pofuna kufotokoza chiyambi cha banja la zinenero zomwe panopa zikugwiritsidwa ntchito ndi pafupifupi theka la anthu padziko lapansi.
Lingaliro la Steppe likuwonetsa kuti zoyambira za izi zitha kuyambika kudera la Pontic-Caspian Steppe pafupifupi zaka 6,000 zapitazo.
Lingaliro la "Anatolian" kapena "ulimi" likuwonetsa kuti chiyambi cha china chake chikugwirizana ndi kuyamba kwa ulimi pafupifupi zaka 9,000 zapitazo.
Komabe, kafukufuku wakale wokhudza banja la zilankhulo za ku Indo-European adapeza zotsatira zosiyanasiyana chifukwa cha zolakwika zina komanso kusagwirizana pakati pa data yomwe idagwiritsidwa ntchito.
Pofuna kuthana ndi zoperewerazi, gulu la akatswiri a zilankhulo 80+ ochokera padziko lonse lapansi adaphatikiza mawu oyambira kuchokera kuzilankhulo 161 za Indo-European, zomwe zimaphatikizapo zilankhulo 52 zakale kapena zakale.
Kusanthula kwaposachedwa, kuwonekera mu Science, anafufuza ngati zilankhulo zakale zolembedwa, monga Chilatini Chachikale ndi Chisanskriti cha Vedic, zinali zotsogola za zinenero zamakono za Romance ndi Indic, motsatizana.
Ofufuza adachita kafukufuku wazomwe adagawana za lexicon yayikulu m'zilankhulo 100 zamakono ndi zilankhulo 51 zakale.
Zikuwoneka, malinga ndi kafukufukuyu, kuti banja la chinenero cha Indo-European lakhalapo kwa zaka 8,100 ndipo zaka 7,000 zapitazo, nthambi zazikulu zisanu zinali zitagawanika kale.
Malinga ndi wolemba mnzake Russell Gray, nthawi ya kafukufukuyo imakhalabe yolimba ikayesedwa motsutsana ndi mitundu yosiyanasiyana ya phylogenetic ndi kusanthula kwamphamvu.
Dr Gray adanenanso kuti kuphatikiza kwa DNA yakale komanso chilankhulo cha phylogenetics kungapereke yankho ku zovuta zakale za Indo-European, zomwe ndi kuphatikiza kwaulimi ndi malingaliro a Steppe.
Kutengera ndi zofufuza zaposachedwa, malingaliro osakanizidwa aperekedwa kuti ayambitse zilankhulo za Indo-European. Ikufuna kwawo kwawo kumwera kwa Caucasus ndi nyumba yachiwiri ku Steppe, komwe zilankhulo zina za Indo-European zidafika ku Europe ndi kusamuka kwa anthu a Yamnaya ndi Corded Ware.
Paul Heggarty, yemwe adathandizira pa kafukufukuyu, adanena kuti DNA yakale yaposachedwa kwambiri imalozera ku nthambi ya Anatolian ya Indo-European yochokera kwinakwake pafupi ndi kumpoto kwa Fertile Crescent, osati kuchokera ku Steppe.
Dr. Heggarty ananena kuti chinenero banja mtengo topology ndi mibadwo kugawanika madeti kuloza ku nthambi zina kuti mwina kufalikira kuchokera m'deralo mwachindunji, osati mwa Steppe.
