copyright If you wish to donate copyright material to Wikipedia or place it in the public domain you must follow our procedures   and  explicitly license the rights to the material according to our licensing using the CCBYSA  and the GNU  licenses as explained in WPCOPYRIGHT and WPDonating copyrighted materials  these  give everyone in the world an irrevocable license to reuse and alter the material even for commercial purposes  Its not enough to place a notice on the article talk page I advise you to do this very quickly before the article gets   for deleted