Analysis of information sources in references of the Wikipedia article "야다바" in Korean language version.
In the time of Periplus(C 80 AD) the very area called by Ptolemy Larike was called Abiria. It seems that the Abhiras of Gujurat were the Rastrikas of Asoka and the Yadavas of Mahabharatha
In the Harivamsa, the Yadava kingdom called Anaratta is described as mostly inhabited by the Abhiras(Abhira-praya-manusyam)
surrounding territories round about Mathura mainly consist of Abhiras(Abhira-praya). Later it is said that all the races of Anhdakas, Vrisnis, etc. belonged to this race of Yadu. If this be so, it is evident that Krshna belonged to a race which included the race of Abhiras
The Yadavas of the Mahabharata period were known to be the followers of Vaisnavism, of which Krsna was the leader: they were gopas (cowherd) by profession, but at the same time they held the status of the Ksatriyas, participating in the battle of Kurukshetra. The present Ahirs are also followers of Vaisnavism.
The fact that the Yadavas were pastoral in their habits is distinctly proved by the fact that Krishna's sister Subhadra when she was taken away by Arjuna is described as having put on the dress of a Gopi or female cowherd. It is impossible to explain this fact unless we believe that the whole tribe was accustomed to use this dress. The freedom with which she and other Yadava women are described as moving on the Raivataka hill in the festivities on that occasion also shows that their social relations were freer and more unhampered than among the other Kshatriyas. Krishna again when he went over to Arjuna's side is said in the Mahabharata to have given in balance for that act an army of Gopas to Duryodhana. The Gopas could have been no other than the Yadavas themselves.
