Who owns Wikipedia?

The articles in Wikipedia are collaboratively written and have been released by their authors under an open source license. This means they are free content and may be reproduced freely by anyone, without permission, under the same license. Wikipedia is managed and supported by the non-profit Wikimedia Foundation. It is supported by donations. There is no advertising on Wikipedia.

Anyone can edit Wikipedia. How can it claim to be accurate?

"Wikipedia only works in practice, in theory it can never work."