The blue area
<span>What happened during the Industrial Revolution?The introduction of new technology in manufacture (initially thetextile industries) hugely raised productivity per worker andgenerated ever-increasing returns for investment in ongoing capitalinvestment. Advances in transport facilitated distribution of bothmanufactured goods and foodstuffs for growing urban populations.Living standards improved as average per capita income tripled inthe more developed regions in the century to 1914 and improvednutrition, health and medicine doubled world population. Gains inliteracy and education combined with technological innovation tocreate the first mass media.</span>
Disease is the answer I believe... If not than it is death by war or massacre
<span>The Cold War was a nearly 50-year long period of tense relations between the United States and the Communist-ruled Soviet Union. The Cold War began almost immediately after World War II and ended with the 1991 dismantling of the Berlin Wall and the dissolution of the Union of Soviet Socialist Republics. The fear of Communism infiltration in the U.S. government, entertainment industry and other organizations affected American politics, culture, and even daily life, particularly in the early years of the Cold War.</span>
I think Darius created a fairer system in which each province paid according to its wealth. <span />