411 REFERENCE · Wiktionary
Public Domain Day
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
First mentioned by Lawrence Lessig in 2004, but it is unclear when observance began.
Proper noun
Public Domain Day
An annual observance on January 1 of when copyrights expire and works enter into the public domain. Copyrights usually expire every year on January 1 based on the individual copyright laws of each country.
en Copyright Observances