Between 1900 and 2000, the increase in world population was three times greater than for the entire previous history of humanity.
Bantfu labafa etimphini kusukela emnyakeni wa-1900 kuya ku-2000, banyenti ngalokuphindwe katsatfu nakucatsaniswa nebantfu labafa etimphini eminyakeni lengu-1.900 leyendlulile.