Ethnicity and statehood in Pontic-Caspian Eurasia (8-13th c.): Contributing to a reassessment

A Feldman - 2018 - etheses.bham.ac.uk
What is the line between the “ancient” world and the “medieval” world? Is it 476? 330? 632?
800? Most historians acknowledge there is no crisp line and that these are arbitrary …