The website was launched in October 2015 by Roger Peace, author of the Home page.  

The Historians for Peace and Democracy became a sponsor the following month, and the Peace History Society, in June 2016.

The Historians for Peace and Democracy (formerly Historians Against the War) was founded in 2003 in opposition to the Iraq War. 

"As historically minded activists, scholars, students, and teachers, we stand opposed to 
wars of aggression, 
military occupations of foreign lands, and 
imperial efforts by the United States and other powerful nations to dominate the internal life of other countries."