Deposits containing human bone date from as early as 3000 BC, when the ditch and bank were first dug, and continued for at least another 500 years
Imali efaka usuku lwamathambo omuntu kusukela ekuqaleni kwe-3000 BC, lapho umgodi nebhange kuqala ukumbiwa, futhi kwaqhubeka okungenani eminye iminyaka eyikhulu.