What year was the Irish politican, who Dr. Diarmuid Whelan wrote his doctoral thesis about, born?
Diarmuid Whelan:  He wrote his doctoral thesis on Conor Cruise O'Brien. Conor Cruise O'Brien: Conor Cruise O'Brien (3 November 1917 – 18 December 2008) often nicknamed "The Cruiser", was an Irish politician, writer, historian and academic.
1917