Related by context. Frequent words. (Click for all words.) 50 famines 48 Dark Ages 48 Industrial Revolution 48 civilization 47 Little Ice Age 47 Colonialism 45 hunter gatherers 45 homo sapiens 45 underdevelopment 44 aridity 44 colonization 44 Homo sapiens 44 colonialism 44 impoverishment 44 Malthusian 44 scarcities 43 colonialists 43 serfdom 43 nineteenth century 43 glaciation 43 twentieth century 43 Middle Ages 43 classless society 43 destitution 43 subjugation 42 megafauna 42 utopias 42 stagnation 42 sixteenth century 42 colonized 42 humankind 41 balkanization 41 suburbanization 41 colonies 41 prehistory 41 eighteenth century 41 Malthus 41 Spanish conquistadors 41 slavery 41 domestication 41 Anglo Saxons 41 feudalism 41 epoch 41 slaves 40 hunter gatherer 40 Thatcherism 40 epidemics 40 civilizations 40 colonizers 40 feudal 40 tyrannies 40 delusion 40 despotism 40 Communist regimes 40 millennia 40 mankind 40 pestilence 40 agrarian society 40 mass migrations 40 paradox 40 British colonialists 39 rapid industrialization 39 colonists 39 neo colonialism 39 utopia 39 peasantry 39 humans 39 warp 39 #th century 39 industrialization 39 potato famine 39 famine 39 ghettoes 39 urbanization 39 mercantilism 39 backwardness 39 forebears 39 Progressive Era 38 droughts 38 tyranny 38 empires 38 ancestors 38 Slavery 38 untold misery 38 industrializing 38 colony 38 millenniums 38 ghettos 38 enslavement 38 societies 38 enslaved Africans 38 globalization 38 Progressivism 38 seventeenth century 38 Thomas Hobbes 38 abject poverty 38 colonizer 38 domesticated 38 Enlightenment 38 deprivations 38 Bolshevism