N. C. Wyeth, from The Boy's King Arthur (1922)
Works that are not under copyright control
Anyone can freely copy, distribute, derive from, etc
Usually from expiration of copyright
Works published in the U.S. are public domain if:
Published before 1923
(Not necessarily including sound recordings)
Published before 1923
Published before 1923
Published before 1978 without copyright notice
Published before 1978 without copyright notice
Published before 1963, and copyright not renewed
Published before 1963, and copyright not renewed
Work of the U.S. Federal Government
Work of the U.S. Federal Government
Work of the U.S. Federal Government
Work of the U.S. Federal Government
Using licenses to establish norms of sharing, rather than control
