A ƙarni na 4 KZ, ƙabilar Celtic sun yi ƙaura zuwa yankunan da ke kusa da kogin Rába kuma suka ci Illyrian mutanen da suke zama a wurin, amma Illyrians sun yi nasarar kama Celt, waɗanda suka soma yarensu.^[2] A wajen 300 KZ sun yi yaƙi mai nasara da Scythians.Wadannan mutane sun haɗu da juna ta hanyar lokaci.A cikin 290s da 280s KZ, mutanen Celtic da ke ƙaura zuwa yankin Balkan sun ratsa ta Transdanubia amma wasu kabilu sun zauna a yankin.^[3] Bayan 279 KZ, Scordisci (ƙabilar Celtic), waɗanda aka ci nasara a Delphi, sun zauna a mahadar kogunan Sava da Danube kuma sun tsawaita mulkinsu a kudancin Transdanubia.^[3] A wannan lokacin, Taurisci (kuma kabilar Celtic) ne ke mulkin sassan arewacin Transdanubia kuma a shekara ta 230 KZ, mutanen Celtic (mutanen al'adun La Tène) sun mamaye duk yankin Babban Filin Hungarian. .^[3] Tsakanin 150 zuwa 100 KZ, sabuwar kabilar Celtic, Boii ta koma Basin Carpathian kuma sun mamaye yankunan arewa da arewa maso gabas na yankin (mafi yawan yankin Slovakia na yanzu).^[3] Kudancin Transdanubia tana ƙarƙashin ikon ƙabilar Celtic mafi ƙarfi, Scordisci, waɗanda Dacians suka yi tsayayya daga gabas.^[4] Dacians sun mamaye Celts kuma ba za su iya shiga siyasa ba har sai karni na 1 KZ, lokacin da Burebista ya haɗu da kabilu.^[5] Dacia ya rinjayi Scordisci, Taurisci da Boii, duk da haka Burebista ya mutu ba da daɗewa ba kuma ikon tsakiya ya rushe.^[4]