Photo by believekevin, CC BY-SA.

A query to the cc-community mailing list asking for resources on the history of the copyleft movement led to many good suggestions and turned up the cool chalkboard timeline pictured above. While impressive visually, the chalkboard only covers 1998-2007 and leaves much important stuff out (such as the launch of CC in December, 2002!). Take this as a challenge to find a longer chalkboard. 🙂