Modern World (Indeed a different world)

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The 20th century after the second World War and the Korean War
The mid-20th century is distinguished from most of human history in that its most significant changes were directly or indirectly economic and technological in nature. Economic development was the force behind vast changes in everyday life, to a degree which was unprecedented in human history.

 Over the course of the 20th century, the world's per-capita gross domestic product grew by a factor of five, much more than all earlier centuries combined (including the 19th with its Industrial Revolution). Many economists make the case that this understates the magnitude of growth, as many of the goods and services consumed at the end of the 20th century, such as improved medicine (causing world life expectancy to increase by more than two decades) and communications technologies, were not available at any price at its beginning. However, the gulf between the world's rich and poor grew wider,   and the majority of the global population remained in the poor side of the divide.

 Large-scale industry and more centralized   media   made brutal dictatorships possible on an unprecedented scale in the middle of the century, leading to several wars that were also unprecedented. However, the increased communications contributed to   democratization. Technological developments included the development of airplanes,  exploration and the start habitation of space,   nuclear technology , advancement in   genetics , and the dawning of the   Information Age.

21th century(Post World War III)
The World changed  the globe political map with the US the sole superpower,having base across the world and on the Moon plus a large base under contrescion on Mars which is intened to be the jumping station for outside the solar system, With  china having  itself reunited in the War is a  potential  Superpower having engage in a Cold War with America since the  beijing accident in 2009.

