The 2,520 years began in October 607 B.C.E., when Jerusalem fell to the Babylonians and the David king was taken off his throne.
Malembe ya 2 520 ma sungule hi October 607 B.C.E., loko muti wa Yerusalema wu tekiwa hi Vababilona naswona hosi ya rixaka ra Davhida yi susiwile exiluvelweni xa yona.