The 1914-1918 Online International Encyclopedia of the First World War is a project of three German institutions for a portal with an online encylopedia concerning the First World War. After its launch in October 2014 the encyclopedia started with the objective to contain some 600 articles written by authors from a multitude of countries. In 2017 this online encyclopedia reached the milestone of 1,000 articles. There is an important links collection to websites concerning the First World War. The encyclopedia provides also an online bibliography with filtering options for regions, themes and languages.