Joe Carter, of the Gospel Coalition, wrote a mesmerizing and horrifically tragic piece today about the numbers that are coming out from the Chinese Government about their abortion rates over the last several decades (since 1971).  (read full article below) 

 They are admitting, by the numbers, that it is the largest slaughter in human history, with 336 million unborn children having been aborted.  Many of these abortions were done forcibly to abide by strict Chinese guidelines.  

336 million abortions have been performed since 1971 in China with 196 million sterilizations conducted and over 403 million intrauterine devices inserted.

With China growing into the most populated country in the world they became the first to enforce limits on population growth in 1971 and in 1979 established its "one-child" population control program.

The story has been largely overlooked as China has carried out the greatest slaughter in human history.  
336 million would equal the entire combined populations of the United States and Australia.  

Also Joe reports in his article these numbers, 

"More than all the people killed in the 10 ten deadliest wars in human history (Based on highest estimates (in millions): World War II (72), World War I (65), Mongol Conquest (60), An Lushan Rebellion (36), Taiping Rebellion (30), Qing Dynasty conquest of the Ming Dynasty (25), Conquests of Timur (20), Dungan Revolt (12), Russian Civil War (9), Second Congo War (5.4)"

More than all the people killed in the 10 ten deadliest wars in human history (Based on highest estimates (in millions): World War II (72), World War I (65), Mongol Conquest (60), An Lushan Rebellion (36), Taiping Rebellion (30), Qing Dynasty conquest of the Ming Dynasty (25), Conquests of Timur (20), Dungan Revolt (12), Russian Civil War (9), Second Congo War (5.4))

More than all the children that will be born in the world over the next ten years."
Even with China been the most populated country in the world, the tragic numbers across the world in abortions over the last decades would be mind-numbingly shocking.  

Read Joe's full article here: http://thegospelcoalition.org/blogs/tgc/2013/03/22/china-admits-to-the-greatest-slaughter-in-human-history/