Around What Years did Druidism Take Place?

I'm doing a research paper on witchcraft and I can't find the information I need. Does anyone know around what years Druidism took place?

Well are you speaking about Ancient Druidism or the revival of it?
Ancient Druidism really doesn't have a known time for existing but the oldest estimate I have been able to find is 3330 BCE, but like I said, no one is really sure, this is all based on temples they have found and have related to Druidism, and that they have done radio carbon dating on.
The revival, or attempted revival took place during the 18Th century.

You're doing a research paper, so do the research. The Internet is the perfect tool for such questions. Yahoo!Answers is not. Nobody here knows what they're talking about, myself included.

Druidism did not "take place" it is not an event, it is a belief system.

Druidism still exists into modern day.

If you're doing your paper on witchcraft then I would suggest doing it on witchcraft, druidism is not the same thing other than the fact that they are now both considered pagan religions thanks to the Catholics. If you want a good site for that sort of thing than try: http://www.religioustolerance.org/