1930s 19th-century 19th-century-literature activism advanced-technology adventure alien-civilization alien-civilizations alienation allegory alternate-future alternate-history alternate-reality anarchism anarchist anarcho-syndicalism anarchy anti-fascism apocalyptic authoritarianism autobiographical autobiography barcelona battle betrayal british-literature catalonia catalonia-independence cautionary-tale civil-war civilization class-divide class-division class-struggle classic classic-literature classics communism conflict democracy dictatorship dystopia dystopian dystopian-future dystopian-society eloi escapism europe european-history evolution evolutionary-theory existentialism exploration exploration-of-time fantasy fascism fear-of-progress first-hand-account foreign-correspondent freedom future future-societies future-society future-technology futurism futuristic futuristic-technology george-orwell government h.-g. h.-g.-wells h.g.-wells historical historical-account historical-nonfiction history homage-to-catalonia human-civilization human-evolution human-nature human-progress humanity idealism ideology imagination imaginative industrial-revolution international-brigades international-conflict invention isolation journalism journalist journalistic literary london loyalty machine machines memoir militarism military military-conflict military-service militia militias morality morlocks nationalism non-fiction nonfiction oppression orwell orwellian personal-account personal-experience personal-narrative philosophical philosophical-themes philosophy political political-activism political-commentary political-conflict political-ideologies political-ideology political-journalism political-memoir politics post-apocalyptic poum power progress propaganda rebellion repression republican republican-faction republicanism resistance revolution revolutionary revolutionary-politics science science-and-technology science-fantasy science-fiction scientific-discovery scientific-ethics scientific-exploration scientific-invention scientific-inventions scientific-progress social-class social-commentary social-criticism social-critique social-hierarchy social-inequality social-justice socialism socialist societal-critique societal-decay society soldier spain spanish-civil-war spanish-politics spanish-republic spanish-revolution speculative-fiction steampunk survival technological-advancement technological-advancements technological-innovation technology thought-provoking time-dilation time-machine time-manipulation time-paradox time-travel time-traveler totalitarianism utopia utopian-society victorian victorian-era victorian-literature victorian-society violence visionary war war-correspondent war-journalism war-memoir wells