Ivyo bijanye w21 Gitugutu rup. 29-31 1921: Imyaka 100 irarangiye Gukora ivyo Yehova adusaba biravamwo imihezagiro Umunara w’Inderetsi utangaza Ubwami bwa Yehova (Integuro y’ukwiga)—2017 1922: Imyaka 100 irarangiye Umunara w’Inderetsi utangaza Ubwami bwa Yehova (Integuro y’ukwiga)—2022 Amahitamwo ashikana ku gahimbare Umunara w’Inderetsi Utangaza Ubwami bwa Yehova—2007 Iragi twarazwe gushika kw’iyaruka ry’indwi Umunara w’Inderetsi Utangaza Ubwami bwa Yehova—2015 1923: Imyaka 100 irarangiye Umunara w’Inderetsi utangaza Ubwami bwa Yehova (Integuro y’ukwiga)—2023