- Purple: nomadic pastoralists
- Yellow: hunter-gatherers
- Brown: empires
- Green: simple farming societies
- Orange: complex farming societies/chiefdoms
- Blue: state societies
- Dark green: Iranian/Persian, Greek and Hellenized states and empires
- Red: Roman Republic and its dependencies
- White: uninhabited
Author: Briangotts?
No small dot for Indo-Europeans separated from the Celtiberians up north? Okay…
After reading the credentials of the source you presented (Wikipedia username with no link to an actual person or study where I can check actual credentials, so none), this map is pretty questionable. It decided to delete all my people.