I believe that the Mongols were barbaric people during their conquer through Asia because of their killing methods and military tactics. Mongolians had also made some improvement to asia's economic growth. Some could say that because the Mongols were open to all religions within their people group they were not barbaric.But the Mongols were just not completely barbaric because they killed a lot of people for really no reason.
The Mongolians had created many different and creative ways to kill un-loyal soldiers and captured enemies. The Mongols would often boiled people alive for their un-loyalty. The Mongols would also put whole groups of people to death if they retreated or ran away from enemy attacks