Mawu a M'munsi

a Kunena mwadongosolo lake, zaka za zana la 21 zidzayamba pa January 1, 2001. Komabe, kagwiritsiridwe ntchito kotchuka, kamasonyeza zaka za zana la 1 kukhala zinayambira m’chaka cha 1 ndi kuthera mu 99 (panalibe chaka cha 0); zaka za zana la 2, zikumayambira m’chaka cha 100 ndi kukathera mu 199; ndipo moyenerera, zaka za zana la 21, zidzayambira m’chaka cha 2000 ndi kuthera mu 2099.