Most of the history that I mentioned is documented by notable Christians. There are online archives of the old works, but there is much more out there.
http://www.ccel.org/
That one's at Calvin. Thomas Aquinas recorded and wrote some interesting stuff.
http://www.ccel.org/ccel/aquinas/catena1.ii.xxvii.html
http://www.ccel.org/ccel/aquinas/catena1.ii.xxviii.html
http://www.thomistica.net/margaret-of-flanders-online/
There are also Catholic archives.
"
Do they really not realise that Jesus was Jewish?"
As far as I can tell from having asked a few, they seem to envision him as being an anti-Jewish Jew. They choose creative comments and individual verses about him over the documents (including New Testament) that portray him as a student of the Torah. And IMO, they confuse what is attributed to Paul (who also said that he was Jewish, although he demonstrated more Hellenistic beliefs and came from a Hellenistic place) with statements attributed to Jesus.
I'm not Jewish, BTW. If I were, this message wouldn't be transmitted tonight. The study of Judaism (newer study of mine) is comforting, though.