'The Cambridge Modern History, Volume 02, The Reformation' Summary

The first series, planned by Lord Acton and edited by him with Stanley Mordaunt Leathes, Sir Adolphus William Ward and G. W. Prothero, was launched in 1902 and totalled fourteen volumes, the last of them being an historical atlas which appeared in 1912. The period covered was from 1450 to 1910. Each volume includes an extensive bibliography.

A second series, with entirely new editors and contributors, The New Cambridge Modern History, appeared in fourteen volumes between 1957 and 1979, again concluding with an atlas. It covered the world from 1450 to 1945.