Upon graduation from the Greek Gymnasium of Famagusta in 1957 he carried on his studies at the Pedagogical Academy of Cyprus, qualifying as a teacher in 1962.
[3] Christodoulou began his career as a school teacher in 1962 before joining the Publications Section of the Press and Information Office in 1964.
In June 2001, Dr Christodoulou represented Cyprus at the Special Session of the United Nations General Assembly which he addressed on the issue of human settlement.
"I believe that our successful, I hope, entry into the euro zone and the common currency will be a catalyst, a positive element to solve the very important problem we're faced with", Christodoulou said.
[7][8] While still at school Dr Christodoulou took part in the liberation struggle of EOKA and was interned without trial as a political prisoner.