Original sentence: The Institute of Geography and Earth Sciences was formed in 1989 from the former Departments of Geography (established in 1917) and Geology
Edited sentence: Aberystwyth was the first department to offer students single honours degrees in human geography and physical geography and has always been at the cutting edge of innovations in teaching and research.In the most recent Research Assessment Exercise (RAE) in 2008, where the Institute was ranked in the top 12 departments in Britain for Geography, with 20% of research classed as "world leading" and 45% classed as either "world leading " or "internationally excellent".The Institute of Geography and Earth Sciences was formed in 1989 from the former Departments of Geography (established in 1917) and Geology making it one of the oldest Geography departments in the UK