Unterländer, Martina (3. marts 2017). "Ancestry and demography and descendants of Iron Age nomads of the Eurasian Steppe". Nature Communications. 8: 14615. doi:10.1038/ncomms14615. PMC5337992. PMID28256537. During the first millennium BCE, nomadic people spread over the Eurasian Steppe from the Altai Mountains over the northern Black Sea area as far as the Carpathian Basin... Greek and Persian historians of the 1st millennium BCE chronicle the existence of the Massagetae and Sauromatians, and later, the Sarmatians and Sacae: cultures possessing artefacts similar to those found in classical Scythian monuments, such as weapons, horse harnesses and a distinctive ‘Animal Style' artistic tradition. Accordingly, these groups are often assigned to the Scythian culture...