That surprises me, since nothing like the Wicca existed until around the 1950s.
It is true that there was no organized religion called Wicca until Gerald Gardner introduced it in the 1950s, and I personally wish that fewer Wiccans and would-be Wiccans were guilty of bad scholarship -- i.e. their claims that Wicca as a religion is "ancient." It isn't. It does, however, have some important ancient ties.
Regardless of the rituals used or the name you slap on it, celebrating nature's cycles and having reverence for the earth is nothing new. Regardless of the words or the trappings, the use of magic is nothing new. Regardless of the context, the inclusion of female deity is definitely nothing new, and I'm glad that it's finally being recovered. All of these traits do date back to pre-Christian times, and if you go back far enough, all of our ancestors were pagans. And whether or not they called themselves Wiccans, a rather disconcerting number of people have been slaughtered by Christians for practicing what the Christians called witchcraft and/or for simply not being Christians.
There is also some truth to the idea that the Catholic Church rewrote witch history. In their persecution of people who they accused of witchcraft, they came up with some pretty inventive stuff: pacts with Satan, orgies with demons, Devil's Marks, all kinds of things that had no bearing on reality. I doubt that witchcraft would have such a scary rep now if it weren't for that old smear campaign.
*Rochelle, disorganized Witch who will never join a coven.
---------
"Most men complacently accept 'knowledge' as 'truth'. They are sheep, ruled by fear."
-- Sydney Losstarot, "Vagrant Story."