I have recently completed the Adiparva, Mahabharata and the most common features the kings had was copper/reddish eyes, dark skin, muscular stature etc. which I think could be regarded as the true 'Aryan' physique compared to the blonde hair, fair skin etc. that was considered as the true 'Aryan' physique in the west. As an example I present this verse about the description of Bharata who was the progenitor of the Kuru lineage in the Adiparva. The word सिंहेक्षण: could be taken to mean eyes like lion but it could also mean eyes that had the same colour as that of the lion and lions do have copperish/reddish eyes or at least can look that way when viewed under certain lighting conditions. This is also consistent with the eye colour of Lord Rama that is mentioned in the Valmiki Ramayana.
I think this is important because this immediately invalidates the Aryan Invasion Theory and hence a western origin of Aryans
Another important set of verses from the Adiparva which I think refers to the settlement of the Indus Valley Civilization by Maharaja Samwaran. The verses are very explicit how Maharaja Samwaran moved Westwards to settle the on the Indus again invalidating the Aryan Invasion Theory which assume that the IVC was settled by Aryans from the West.