MediaWiki:Licenses

• Unknown_copyright|I don't know exactly
• Free licenses:
  • PD|PD: public domain
  • CC-by-nc-sa-4.0|Creative Commons Attribution NonCommercial ShareAlike 4.0 International
  • GPL|GPL: GNU General Public License
  • LGPL|LGPL: GNU Lesser General Public License
• Non-free license (exception):
  • ARR|All Right Reserved