original: in 1963 , haile selassie presided over the establishment of the organisation of african unity , with the new organization establishing its headquarters in addis ababa .
simplifications: in 1963 , haile selassie headed over the inaguration of the organisation of african unity , with the new organization establishing its headquarters in addis ababa . in 1963 , haile selassie became president of new organisation of african unity and established headquarters in addis ababa . in 1963 , haile selassie was in charge of starting the organisation of african unity , with the new organization making its headquarters in addis ababa . in 1963 , haile selassie led the organisation of african unity with the new organisation making its headquarters in addis ababa . in 1963 haile selassie presided over the establishment of the organisation of african unity with the new organization headquarters at addis ababa . in 1963 , haile selassie presided over the establishment of the organization of african unity , with the new organization establishing its headquarters in addis ababa . in 1963 , haile selassie was in charge of the founding of the organization of african unity . the new organization built it 's headquarters in addis ababa . in 1963 , haile selassie headed over the setting up of the organisation of african unity , with the new organization beginning its headquarters in addis ababa .