This book is the most definitive mainstream historical research on the subject: https://dn790008.ca.archive.org/0/items/dunlop-d.-m.-the-history-of-the-jewish-khazars/Dunlop%20D.M.%20-%20The%20History%20of%20the%20Jewish%20Khazars.pdf

Here's what one guy wrote about it:

For all the folks who claim Arthur Koestler invented the Khazar theory this is proof he didnt. Koestler wrote his book so others could simply say "A zionist invented this theory". The truth is there are even more books out there than this one on the Khazars and you could check with the Vatican library or just google Leo the Khazar. The people who dont believe there were Khazars obviously do not want to know their history either, usually the same people who dont want to know the history of the House of Judah or the Israelites (all 12 tribes) that James the apostle for one addressed his epistle to. One has to ask why the Arabic looking Jews look different from the European type Jews and I am here to tell you it is not because of geography it is because of biology.

Dunlop does a fantastic job recreating the age old Pagan nomad Empire caught in the center of a religious struggle between Christiandom and the Islamic expanisionist Caliphate. A debate was held between by the Khazar Khagan between a Christian Bishop sent from Byzantium, his Jewish advisor and an Islamic Imam resulting in a third power, a Jewish one. Dunlop presents a well documented work which takes into consideration all documentation Christian, Jewish and Islamic Historical resources in his review. Dunlop uses scholorly advisors to assertain which information is more of fact and which is fabrication for political purposes. It is a very interesting read which dispells much of the myths of Eastern European Jewish history as well is the most accurate presentation on this specific topic. Arthur Kostler in his lesser work "The Thirteenth Tribe" uses Dunlops work in mass referance although it falls short when compared to "The History of the Jewish Khazars" by taking a leap and realying on information deemed inaccurate according to Dunlop and his advisors. Other then that a recommeded read far superior and more indepth then that of Kostler's effort.

I'll read it and make a thread eventually.

This book is the most definitive mainstream historical research on the subject: https://dn790008.ca.archive.org/0/items/dunlop-d.-m.-the-history-of-the-jewish-khazars/Dunlop%20D.M.%20-%20The%20History%20of%20the%20Jewish%20Khazars.pdf

Here's what one guy wrote about it:

For all the folks who claim Arthur Koestler invented the Khazar theory this is proof he didnt. Koestler wrote his book so others could simply say "A zionist invented this theory". The truth is there are even more books out there than this one on the Khazars and you could check with the Vatican library or just google Leo the Khazar. The people who dont believe there were Khazars obviously do not want to know their history either, usually the same people who dont want to know the history of the House of Judah or the Israelites (all 12 tribes) that James the apostle for one addressed his epistle to. One has to ask why the Arabic looking Jews look different from the European type Jews and I am here to tell you it is not because of geography it is because of biology.

I'll read it and make a thread eventually.