The first set of copyright licenses was released in December 2002
https://web.archive.org/web/20231108101926/https://en.wikipedia.org/wiki/Creative_Commons
The first set of CC licenses was released on #2002/12/16 ( https://web.archive.org/web/20030207225048/http://creativecommons.org/press-releases/entry/3476 ) a month after I started my blog. I adopted the cc license in my blog the next month #2003/01/23 https://www.zylstra.org/blog/2003/01/creative_common/ even though then they were not congruent with EU/Dutch jurisdiction. Used a by nc sa license at first. Later changed to by sa, which is an open license rather than closed (because of nd).