Chola history has reference of Brahmins living in Thanjavur, Kanchi, Kashi, odisha etc. Min 2000 years of existence.
Tholkappiam the oldest known Tamil literature has reference to vediyan, andanan.Min 5000 years old
Silappadhikaram has references of kannaki kovalan marriage headed by a brahmin priest.
Brahmins are unique because when other communities discarded sacred thread they continue. Because of the thrust on discipline, they remain detached from others to maintain their idealogies. This coupled with minority in number makes them a easy target for any ill-treatment.
So Brahmins are from nowhere. As long as the diaspora feels that Tamils are of generations, they are also here, wherein some transformations are always happening due to complusion of time and evolution..
