50 years have passed since the year of death of the author (or last-surviving author)
It is an anonymous work or pseudonymous work and 75 years have passed since its publication
It is an anonymous work or pseudonymous work that was not published within 50 years of its creation and 75 years have passed since it was made accessible to the public
It is an anonymous work or pseudonymous work that was not made accessible to the public within 50 years of its creation and 100 years have passed since its creation
It is a collective, audiovisual, or posthumous work and 75 years have passed since its publication.
It is a collective, audiovisual, or posthumous work that was not published within 50 years of its creation and 75 years have passed since it was made accessible to the public.
It is a collective, audiovisual, or posthumous work that was not made accessible to the public within 50 years of its creation and 100 years have passed since its creation
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