The content of this web site is made up, primarily, of "public domain" (non-copyright) materials in English:

1. Official government histories (United States and British Commonwealth/Empire);
2. Source documents (diplomatic messages, Action Reports, logs, diaries, etc.; and
3. Primary references (manuals, glossaries, etc. Wherever possible, hyperlinks between these histories and documents have been included.
4. "Order of Battle" information compiled by the HyperWar authors. This currently includes pages for each of the ships in the U.S. Fleet; a start on pages for U.S. Army Divisions; and a smaller start on pages for U.S. Marine Corps Divisions.

ibiblio.org is a collaboration of the Center for the Public Domain and The University of North Carolina - Chapel Hill. For more information about Hyperwar see: Ibiblio.org Hyperwar

Copyright-Information on other ibiblio-sites may differ from PD. For more information please see on these special pages. For general information about ibiblio.org see: About ibiblio

This photograph is in the public domain in Japan because its copyright has expired according to Article 23 of the 1899 Copyright Act of Japan (English translation) and Article 2 of Supplemental Provisions of Copyright Act of 1970. This is when the photograph meets one of the following conditions:

1. It was published before 1 January 1957.
2. It was photographed before 1 January 1947.

It is also in the public domain in the United States because its copyright in Japan expired by 1970 and was not restored by the Uruguay Round Agreements Act.