International conference on Orphan Works

In 2019 the European Union adopted Regulation 2019/880 on the Introduction and the Import of Cultural Goods which introduced new set of procedures and conditions in order to safeguard humanity's cultural heritage and prevent the illicit trade in cultural goods. Here is the overview of a few challenging issues related to the practical application of the Regulation.
Here is an easy-to-read overview of what is allowed (and restricted) under different types of Creative Commons licenses.