In October 2007 he took up the post of Vice-Chancellor at the University of Essex.
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Professor Riordan taught English as a foreign language at Julius-Maximilians-Universitat Wurzburg in Germany (1982–84).
Colin Powell | Colin Farrell | Colin Firth | Colin Baker | Colin James | Colin Davis | Colin Meloy | Colin McCahon | Colin Friels | Jean-Claude Colin | Colin Wilson | Dolores O'Riordan | Colin Todd | Colin Dexter | Rick Riordan | Colin Mawby | Colin Jackson | Colin Hanks | Colin Blakemore | Sir Colin Campbell | Richard Riordan | Colin Welland | Colin Montgomerie | Colin Mochrie | Colin McRae: Dirt 2 | Colin Mackenzie | Colin Lee | Colin Charvis | Colin Chapman | Colin Campbell, 1st Baron Clyde |