According to the correspondence and the official record, this Speech was on the 26th of October 1966 and not as it is written in the Important Utterances on the 28th of October !!!
Important Utterances of H.I.M. Emperor Haile Selassie I - page 486 -
Emperor Haile Selassie opens the 1. Evangelical World Congress, Berlin, 26.10.1966
Emperor Haile Selassie with Billy Graham, Berlin, 26.10.1966
HIM QHS at the World Evangelical Congress, Berlin, 26.10.1966