 Ramba uchinyora ndima iyi - Pakazosvika kutanga kwezana remakore rechi19, vakangwara vakadai saThomas Malthus vakafanotaura kuti vanhu vaizokura kupfuura zvavaikwanisa kuwana nokuti nyika shoma yaisazokwanisa kutsigira vanhu vane mikana isingagumi yokuwedzera. Muzana remakore rechi19, basa raMalthus, zvikurukuru An Essay on the Principle of Population, raiwanzotsanangurwa nenzira yaipomera varombo chete nokuda kwemamiriro avo ezvinhu uye kuvabatsira kwainzi kunowedzera mamiriro ezvinhu munguva refu. Ikoku kwakaguma, somuenzaniso, nemitemo yevarombo yeEngland ya 1834 uye mhinduro yokuzengurira kuNzara Huru yeIrishra184552. 