Akajambo k'epfo

a Muri bwa buryo bwo guharura amatariki bwa B.K.-A.D., ibintu vyabaye imbere y’itariki bivugwa ko Yezu yavukiyeko bavyitirira imyaka ya “B.K.” (imbere ya Kirisitu); ivyabaye inyuma yaho bakavyitirira imyaka ya “A.D.” (Anno Domini—“mu mwaka w’Umukama wacu.”) Ariko rero, incabwenge zimwezimwe zabinonosoye zihitamwo gukoresha impfunyapfunyo idashingiye ku vy’idini “B.G.C.” (imbere y’Igihe Cacu) na “G.C.” (yo mu Gihe Cacu.)