Most of I2 in Greece belongs to I-Y3120, and is either of Celtic or Bastarnae origin (I-Y18331 - possibly half of it and can be traced to 2,100 BCE) or of Slavic origin (I-Z17855, I-Y4460, and I-S17250, all of which can be traced to after the 7th century CE for Greece). A small percentage of it...