I årtusenden har människan drömt om ett lyckorike. Ibland har det kallats Utopia. De Röda Khmererna i Kambodja trodde på 1970-talet att de skulle uppnå detta. De tömde städerna på …
Why did the First World War start? Who was fighting who? Did soldiers still fight with swords? Had aeroplanes been invented yet? What was it like to be inside the first tank sent …