text: Noma kunjalo, kulezi zimo ngasinye kunomehluko omkhulu okhona ofihlekile phakathi kwamanje naseminyakeni yokuqala yawo 1970. Ukuqonda mayelana nalo mehluko kubalulekile ukuthi uqonde kahle mayelana nezomnotho emhlabeni wonke ngonyaka ka-2019 kanye nezingozi ezibeka engcupheni inhlanganisela yalezi zinto.