It is an anonymous or pseudonymous work and 50 years have passed since the date of its publication
It is a posthumous work and 70 years have passed since the date of its publication
It is another kind of work, and 70 years have passed since the year of death of the author (or last-surviving author)
It is one of "official documents (laws, resolutions, decisions, and etc.), as well as their formal translations; official symbols and marks (flags, emblems, orders, banknotes, and etc.); works of popular art"
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Captions
Add a one-line explanation of what this file represents