Maurya Empire and Gupta Empire are the most significant but there has been more than that.
Hope this helps!
I could be wrong but I believe it's the Cape Floristic Kingdom
According to the graph, almost as many deaths occurred in the Civil War compared to other U.S. wars combined. In fact, there were approximately 655.000 deaths in the Civil War (between both sides), and almost 700.000 in all the other U.S. war added together. So with this data we can affirm that the Civil War was the bloodiest conflict in American history
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Thomas Hobbes wrote that.
