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| | China - Facts, Information, and Encyclopedia Reference article |
 | | China as it exists today has been variously described in different points of view as a single civilization or multiple civilizations, as a single state or multiple states, and as a single nation or multiple nations. |
 | | With one of the world's longest periods of uninterrupted civilization and the world's longest continuously used written language system, China's history has been largely characterized by repeated divisions and reunifications amid alternating periods of peace and war, and violent imperial dynastic change. |
 | | Military innovations include the crossbow and the grid sight, crossbow stirrup, repeating crossbows, poison gas (smoke from burning dried mustard), tear gas made from powdered lime, relief maps for battle planning, manned kites, fire lance, rockets, gunpowder incendiaries, gunpowder grenades, proto-handguns, various gun-related ammunition types and the cannon. |
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