Definition of Free Cultural Works

Definition of Free Cultural Works logo, selected in a logo contest in 2006

The Definition of Free Cultural Works is a project that evaluates and recommends compatible free content licenses. Launched in 2006 by Creative Commons' Erik Möller in collaboration with Richard Stallman, Lawrence Lessig, Benjamin Mako Hill, and others, it was created to establish a clear standard for defining free content. The project is used as a reference by the Wikimedia Foundation in its licensing policy. In 2008, the Creative Commons Attribution and Attribution-ShareAlike licenses were formally designated as "Approved for Free Cultural Works." The Definition of Free Cultural Works has since become closely aligned with other open content frameworks, including the Open Knowledge Foundation's Open Definition, the Open Source Definition, and the Free Software Definition.