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in 1211 Ghangis Khan invaded and conquered china despite the wall being up
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in the 8th century the 7 Kindoms of china (Zhao,Qin,Yan,Wei,Han,Qi, Chu) were at war.
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In 220 BC Qin Shi Huang orders construction of northern wall to defend against their enemy's (mongols)
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In 3rd Century BC Qin defeats all of its enemy's , and China becomes an empire .
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China gets rid of mongols and establish the Ming dynasty.
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China built a stronger wall .
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Surface mining of coal was started around 1900 in China
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to 1949 to 1980 the open pit method was the most widely used surface mining method used in china until the shovel truck system . this method entailed that a shovel-train system
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In the mid 1970's rice area harvest were at about 37 million ha in China but have had a steady decrease since then.
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with surface mining came the shovel truck system which was used for the removal of overflow and was a shovel truck with a crushing plant and belt conveyor system for coal transportation from pit to pit or washing plant and storage areas.
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at the beginning of the 20th century to the 1980's ,surface mining was only 4% of China's coal production rate.
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The Construction of The Tree Gorges Dam began December 14 , 1994
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Rice production in china has increased recently with its rate of national production doubling from 7.5% in 1995 to 15% in 2009
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Rice imports in china have declined from 78 kg per year in 1995 to 76.5 in 2009
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In 1995 rice harvest were at about 31 million ha
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China has been the net importer of rice since 1997.
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The Three Gorges Dam Body was completed in 2006
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In 2007 china was the 2nd highest consumer in of oil at 7.3 M while the united states was at 20.6 M
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In 2008 China started working on reducing pollution and smog due to the upcoming Olympics in Beijing
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On June 1st 2008 China banned the use of plastic bags in grocery stores.
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In 2008 China pulled 90% of its drivers off the road in an attempted to lower pollution
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In 2009 new technology discovered 180 additional miles of the great wall and its total length is still unknown .
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China is the largest coal producing country in the world with annual production rate of 324
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by the end of 2010 China's total coal production rate was at 9% compared with 1980's only 4%.
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In 2010 rice harvest were at 30 million ha in 2010.
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The Three Gorges Dam was completed and fully functional on July,4,2012
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In 2014the Three Gorges Dam generated 98.8 TWh of electricity , setting a world record by 0.17 TWh
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The ship lift of The Three Gorges Dam was completed in december of 2015.