CartogramsHistorical MapsPopulationWorld The World’s population In 1900 August 1, 2015 Alex This post may contain affiliate links. As an Amazon Associate, we earn from qualifying purchases.1 square = 500,000 people. Related Posts:The Most and Least Expensive American NeighborhoodsTop 5 Largest Cities Throughout HistoryPetroleum consumptionBritish map describing how civilized they meant the…Similar sized countries over US States and Canadian…Maps of the Great LakesLivestock per sq mile in the USRoundwood production by country