::I realize that this requirement may be disconcerting, but Wikipedia is a private website, and you do need to follow its policies to contribute. It is policy on Wikipedia that content previously published elsewhere must be verifiably public domain or compatibly licensed. I'm sorry if you find this process difficult, but as we have no way of verifying that you own copyright within Wikipedia (this is a legal matter, and we cannot simply take a user's word for it, even if we have no reason to doubt it), we have no recourse but to follow these processes. Please let me know if you need more information on how this is done.