82% of Lancaster University History Department's research has been ranked world-leading or internationally excellent, the two highest categories, in the Research Excellence Framework (REF).
The REF measures the quality of research conducted in UK universities against international standards of excellence.
The vitality and sustainability of the Department's research environment and its impact outside academia were also measured and, in both categories, 100% of the Department's submission was ranked as world-leading or internationally excellent.
Head of Department Professor Andrew Jotischky said: "We are now in the top 25 of all UK History departments. This is confirmation of the originality, significance, and rigour of the historical research produced in the Department."