Open Publication License was created by the Open Content Project in 1999 as a public copyright license for.  The license was superseded in 2003/2007 by the Creative Commons licenses . 
The Open Publication License REPLACED in 1999 the previous Open Content License from 1998.  The two licenses Substantially Differ: The Open Publication License is not a share-alike license while the Open Content License is and the Open Publication License can restrict the OPTIONALLY Distribution of derivative works or to restrict the commercial distribution of paper copies of the work or derivatives of the work, the Open Content License forbade copying for profit altogether.
According to the Free Software Foundation ,  the Open Publication License “LICENSE OPTIONS” listed in Section VI Of the license. ” It is not, however, compatible with the GNU FDL . 
Since May 2007 the Open Content Projects recommends  instead of one of the Creative Commons licenses .
The Open Public License was analyzed in detail by the author of Understanding Open Source and Free Software Licensing , Andrew M. St. Laurent, in 2004.  The license was accepted as free content according to the Free Cultural Works definition. 
A Bruce Perens’ The Open Source Series of books. Eric S. Raymond ‘s book The Cathedral and the Bazaar in 1999.  Bruce Perens used the license for the Bruce Perens’ Open Source Series of books.  Also the Fedora project used the license for their documentation until around 2009/2010 when they switched to a CC-BY-SA license. 
- David A. Wiley
- Category: Open Publication License-licensed works
- Jump up^ Open Publication License v1.0on opencontent.org (8 June 1999)
- ^ Jump up to:a b iterating towards openness »Blog Archive» About the Open Publication License (May 2007)
- Jump up^ OPL(1998)
- ^ Jump up to:a b Free Software Foundation – Licenses – Open Publication License
- Jump up^ Open Source and Free Documentation Licensing, Part 2: The Open Publicationonlamp.com by Andrew M. St. Laurent (10/07/2004)
- Jump up^ Licenseson freedomdefined.org
- Jump up^ Cathedral and Bazaaron catb.org
- Jump up^ Barr, Joe (January 13, 2003). “Meet the Perens” . LinuxWorld Magazine .
- Jump up^ Archive: Relicensing OPL to CC BY SAon Fedoraproject.org