One of my favorite (I use that term lightly) historical events involving the Mongols was when they sieged Baghdad. They flung flaming palm trees, rotting cows and dead soldiers over the walls for days. After they breached the walls, they rode in and slaughtered everyone they could. They then dumped libraries upon libraries of great works into the nearby river, dying the water black and setting their culture back hundreds of years.
They then left for a couple weeks. They returned, and slaughtered the survivors as they tried to rebuild and bury their dead. They piled the corpses for miles around the city, leaving hills of bones to warn any who go near of the wrath of the Mongols.
The Mongols’ conquest, even by their own standards, was brutal. After the capital Samarkand fell, the capital was moved to Bukhara by the remaining men, while Genghis Khan ordered two of his generals and their forces to completely destroy the remnants of the Khwarezmid Empire, including not only royal buildings, but entire towns, populations, and even vast swaths of farmland. According to legend, Genghis Khan even went so far as to divert a river through the Khwarezmid emperor’s birthplace, erasing it from the map.
In Mongolia alone as many as 200,000 of the country’s 2 million people could be Khan descendants. In addition to most of the Mongol nobility up to the 20th century, the Mughal emperor Babur’s mother was a descendant.Timur (also known as Tamerlane), the 14th century military leader, claimed descent from Genghis Khan. Genghis Khan was one of the most powerful warlords during his reign; as a result, the harem that he kept was of enormous size. The four sons of Khan who ruled their own separate kingdoms kept large harems as well.