 Kunyange zvazvo dzidziso dzaThomas Malthus dzaizofanotaura kuti nzara inoderedza ukuru hwechiverengero chavagari venyika zvichienzanirana nezvokudya zviripo, kutaura idi kunyange nzara dzakanyanyisa hadziwanzoiti kuti chiverengero chavagari venyika chiwedzere kwamakore anopfuura mashomanene. Mwero wokufa muChina muna 195861, Bengal muna 1943, uye Ethiopia muna 198385 zvose zvakaitwa nokukura kwechiverengero chavagari vemo mumakore mashomanene bedzi. Nokuda kwokutapurwa kwavanhu kwenguva refu kwakakura ndiko kutama: Ireland yakanyanyoparadzwa pashure penzara dzomuma1840nemasaisai okuenda kune dzimwe nyika. 