it is a photograph and 30 years have passed since creation (Article 84)
it is an audiovisual work and 50 years have passed since publication (Article 40)
it is a work published anonymously or posthumously within 30 years of the author's death, and 60 years have passed since publication (Articles 38 and 39)
it is another kind of work and 50 years have passed since the death of the author (Article 36)
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
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