One of the fossils found—a male, adult jawbone—has been dated to be between 34,000 and 36,000 years old, which would make it one of the oldest fossils found to date of modern humans in Europe.[6] A skull found in Peștera cu Oase (The Cave with Bones) in 2004-5 bears features of both modern humans and Neanderthals. According to a paper by Erik Trinkaus and others, published in the Proceedings of the National Academy of Sciences in January 2007, this finding suggests that the two groups interbred thousands of years ago.
The earliest written evidence of people living in the territory of the present-day Romania comes from Herodotus in book IV of his Histories written c. 440 BCE. Herein he writes that the tribal confederation of the Getae were defeated by the Persian Emperor Darius the Great during his campaign against the Scythians.[7] The Dacians, widely accepted as part of the Getae described earlier by the Greeks, were a branch of Thracians that inhabited Dacia (corresponding to modern Romania, Moldova, northern Bulgaria and surroundings).
The Dacian Kingdom reached its maximum expansion during King Burebista, between 82 BCE - 44 BCE. Under his leadership Dacia became a powerful state which threatened the regional interests of the Romans. Julius Caesar intended to start a campaign against the Dacians, due to the support that Burebista gave to Pompey, but was assassinated in 44