ancient Greek and Roman were E1b1b1a E-V13

. E-V13 is one of the major markers of the Neolithic diffusion of farming from the Levant. Like all the other subclades of E1b1b1a, E-V13 originated in North-East Africa around the end of the last Ice Age. Its frequency is now far higher in Greece, South Italy and the Balkans than anywhere else due to a founder effect, i.e. the migration of a small group of settlers carrying mostly this lineage (but also a small amount of other North-East African lineages, notably E-M123 and T). Archeological evidence shows that the region of Thessaly, in northern Greece, was the starting point (circa 6,000 BCE) for the diffusion of agriculture through the Balkans and the Danube basin, as far as northern France to the west and Russia to the east. The modern distribution of E-V13 hints at a strong correlation with the Neolithic and Chalcolithic cultures of Old Europe, such as the Vinča, Boian, Maritsa and Karanovo, cultures. However, the genetic testing of three male samples from the LBK culture only revealed the presence of haplogroups F and G2a. The sample is obviously too small to rule out that E1b1b also entered Europe during the Neolithic period though.
E-V13 is also associated with the ancient Greek expansion and colonisation. Outside of the Balkans and Central Europe, it is particularly common in Southern Italy, Cyprus and Southern France, all part of the Classcical ancient Greek world.


http://www.eupedia.com/europe/Haplogroup_E1b1b_Y-DNA.shtml