The jizya is a pretty commonly known aspect of Islamic doctrine. I assumes everyone knew about it.
Not me. To be honest, sometimes I feel like my CA upbringing has left me pretty freakin' clueless about Jews, Muslims and related issues.
I think there ARE a lot of Jews in CA, but they don't seem to make a big deal of it the way ones on the East coast seem to do. For whatever reason.
For example, when I think of Jews I've known, the first thing I think of is that Jewish women seem to be sexy in that way that only intelligent white women can be but they don't ever seem to shut up, lol.