This file is derivated from File:WorldMap ja.png. The source and authors of the original map are as follow:

• Original file: Koba-chan and depending on time of crop perhaps also (see original file): JYOQ2, 赤鉛筆, あなん, Siyajkak, Peka, 俊武, Koika, Clarin, Peccafly
• Original data: UNEP GRID data GNV19

The original file is licensed {{GFDL}} and {{Cc-by-sa-3.0}}. The changes made based on the original file are also GFDL and Cc-by-sa-3.0 because they are either minor changes which are {{PD-ineligible}} or they are made before August 1, 2009. In some cases the uploader may have added further licenses for the changes and in that case the licenses are specified below.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.