The National Women's History Museum (NWHM) has created this collection of primary source documents, lesson plans, and educational resources related to the long campaign to grant U.S. women full suffrage rights (2016-20).

The online encyclopedia includes essays and other educational material on historical subjects (including British history and the history of the United States as well as World War I, World War II, Russian Revolution, slavery, women's suffrage, Nazi Germany, Spanish Civil War and Cold War). (U.K. 2005-2021)

The European Parliament is the only supranational institution whose members are democratically elected by direct universal suffrage (EP 2009-13).