muman63 and qq, when I said facts, I meant solid universally accepted evidence. Jewish law that is sometimes followed, sometimes not, depending on the the individuals practicing and the community involved, do not constitute, solid and universally accepted evidence. Neither does the Oral Torah.
Here is another example of a solid fact. The studies on the Jewish Y-chromosome performed by Dr. Michael Hammer of the University of Arizona. Proving that the majority of Jews, both Sefaradi and Ashkenazi (excluding Ethiopians) are Semite and not Turks or East Asians. In fact the study also showed the close resemblance between Jewish and Arab DNA, confirming our Biblical origins going back to Isaac and Ishmael, Abraham's 2 oldest sons.
Here is the article that discussess the study:
http://query.nytimes.com/gst/fullpage.html?res=9D02E0D71338F93AA35756C0A9669C8B63
I mentioned DNA and oral torah.
My point with the oral torah, is
The anti-semites don't claim that sephardim are descendents of khazars. ashkenazim share the same oral tradition as sephardim going back taught down the generations.
It is an irrelevance though, for jews to prove to anti-semites that we are jews.
And , as i'm sure you know, jews don't need science to tell them that their ancestors going way back were jews.(it's rare for 2 converts to marry)
And jews don't have anything against khazars or whoever. If they converted to judaism , they are jews.
jewish law defines who a jew is.
do you think anti-semites are going to say "oh, we only hate jews who are descended from khazars. But we love the "real" jews?" Anti-semites who live with european jews may say that, and maintain that those jews are khazars. But we know that they don't distinguish..
Here's another fact..
Some jewish kohanim, ashkenazim and sephardim have records of their ancesttal tribe going back generations, around 138 generations to Aharon the first kohen.
DNA is the only one anti-semites cannot put a "maybe" on.
They could claim jews manufactured this or that, that this is s forgery, and that is a forgery, just like holocaust deniers do With no evidence.. Like denying a huge event like a war, and claiming all evidence of it is forged.
If you have one proof, you don't need more. If you need more and more, then it suggests a problem with one of them.
Really the DNA proves it completely.
But it's an irrelevance, because
a)if jews need that to tell them they are jewish, then soemthing's wrong
b)jews don't need to prove to anti-semites that they are jews.
nevertheless, it's good to have an irrefutable proof to give them. So as to know how to answer them. But what did jews do before this DNA thing? perhaps similar to what some would say now.
I think rabbi kahane was asked it once. he said
If they think we are going to argue about whether we are jews or not, they have the wrong jew.. It's debasing oneself to even have the discussion. Sometimes they would give their argument, and rabbi kahane responded so ingeniously. One guy on talk radio splattered out all this crazy theory, and rabbi kahane replied, "and did you know abraham was half chinese" . The guy said "no, I didn't know that, that's very interesting". Rabbi kahane said, "yeah, and his mother was half italian" .. The radio host said "ok, next caller"
There was another one on youtube.. Some black guy starts this long rant, and one of teh things he says was that jews are not jews, because mount sinai is in saudi arabia, and jews don't look very arabian. The black guy went on and on, about other things too, and said "the truth hurts" . Kahane replied "Wait till you hear the answer".
He dealt with everything, and to the sinai in saudi arabia point, he replied "Actually, mount sinai is in the antarctica and jews look like penguins". Brilliant! he also went into how a jew is a jew it doesn't matter what race he is. I'm not suggesting rabbi kahane's answers would work for any situation, there were specific brilliant answers tailored for the particular people and format of event, and the things he was asked.. And they were the product of a very sharp mind. A man who could think on his feet like no one else.