This week marks a momentous occasion, as Europeana — Europe’e digital library — has released 20 million records into the public domain using the CC0 Public Domain Dedication. This release is the largest one-time dedication of cultural data to the public domain using CC0. The Europeana dataset consists of descriptive information from a huge trove of digitized cultural and artistic works. Now, per the Europeana Terms of Use, “all metadata (textual information on digitised cultural heritage) on the site are published without any restrictions on re-use.” The public domain data can be useful for cultural institutions, researchers, and application developers. By removing all copyright restrictions from the data, Europeana helps to promote innovation and economic activity.