All the more staggering because back in those times the majority of the world population resided in China and India. At around 0 A.D, there were 100M people in India and 58M people in China[1][2], leaving a few tens of millions in the rest of the world.<p>By the way, in the 202BC battle of Gaixia, 250,000 people died in a world of 150M people[3].<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Demographics_of_China" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Demographics_of_China</a><p>[2] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Demographic_history#India" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Demographic_history#India</a><p>[3] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Battle_of_Gaixia" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Battle_of_Gaixia</a>