History of Public domain

	Revision 19 . . November 21, 2001 12:25 pm by Damian Yerrick [Works of the US gov't are PD]
	Revision 18 . . November 5, 2001 8:35 am by Eean

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Difference (from prior major revision) (no other diffs)

Changed: 20c20,21

Note that copyright term extension under U.S. tradition does not restore copyright to PD works (thus the 1923 date), but European tradition does.

Note that copyright term extension under U.S. tradition does not restore copyright to PD works (hence the 1923 date), but European tradition does. Note further that works created by a United States government agency fall into PD at the moment of creation.