It is a philosophy that is practised by some people. Yes it is real, and no you need not fear a Wiccan. We are no more dangerous than Jehovah's Witnesses. But at least we don't knock on you door trying to convert you.
Yes. I am a Wiccan. Please though, do not act like Wicca is evil because it really isn't.
Yes. Wicca was a collection of "traditional" pagan practices collected by a man named Gardner (I believe his first name was James). And people still practice Wicca, or a derivation of it in the present day.
Short Answer: No
Expansion: But I'm guessing you thought this because of a certain series of books.
They are good books, but like all fiction; it's doesn't hold much truth.
Source: I'm wiccan myself
No
Yes, we're real.
see related link "WICCA"
Wicca has its own scriptures.
Wicca isn't based anywhere.
Of course witchcraft is real and of course it does work! Ever heard of Wicca or Paganism? Herbalism, perhaps?
Wicca isn't based anywhere.
No. Wicca is a religion, not a language.
No. First of all, spells and mermaids are not real, so it doesn't really witchcraft. Witchcraft, at least the Western conception of it, is tied to the religion of Wicca. Most folklore relating to magic is not related to Wicca.
Yes, Faerie Wicca is practiced.
Georgian Wicca was created in 1970.
Wicca Craft was created in 1991.
As Wicca is a religion focusing not on race, but on the belief structures of the individual, there is not (to my knowledge) a specific African-American Wicca. If you are asking if there is a participation by African-Americans in wicca, then the answer is yes.