Genghis Khan (1162-1227), born Temüjin, was the founder and Great Khan (Emperor) of the Mongol Empire, which became the largest contiguous empire in history after his death.
He came to power by uniting many of the nomadic tribes of Northeast Asia. After founding the Empire and being proclaimed "Genghis Khan", he started the Mongol invasions that conquered most of Eurasia. Campaigns initiated in his lifetime include those against the Qara Khitai, Caucasus, and Khwarazmian, Western Xia and Jin dynasties.
These campaigns were often accompanied by wholesale massacres of the civilian populations – especially in the Khwarazmian and Western Xia controlled lands. By the end of his life, the Mongol Empire occupied a substantial portion of Central Asia and China.
Before Genghis Khan died, he assigned Ögedei Khan as his successor and split his empire into khanates among his sons and grandsons. He died in 1227 after defeating the Western Xia. He was buried in an unmarked grave somewhere in Mongolia. His descendants extended the Mongol Empire across most of Eurasia by conquering or creating vassal states in all of modern-day China, Korea, the Caucasus, Central Asia, and substantial portions of modern Eastern Europe, Russia, and Southwest Asia.
Many of these invasions repeated the earlier large-scale slaughters of local populations. As a result, Genghis Khan and his empire have a fearsome reputation in local histories.
Beyond his military accomplishments, Genghis Khan also advanced the Mongol Empire in other ways. He decreed the adoption of the Uyghur script as the Mongol Empire's writing system. He also practiced meritocracy and encouraged religious tolerance in the Mongol Empire while unifying the nomadic tribes of Northeast Asia. Present-day Mongolians regard him as the founding father of Mongolia.
Although known for the brutality of his campaigns and considered by many to have been a genocidal ruler, Genghis Khan is also credited with bringing the Silk Road under one cohesive political environment. This brought communication and trade from Northeast Asia into Muslim Southwest Asia and Christian Europe, thus expanding the horizons of all three cultural areas.
Reenactment of Mongol battle
Genghis Khan put absolute trust in his generals, such as Muqali, Jebe and Subutai, and regarded them as close advisors, often extending them the same privileges and trust normally reserved for close family members. He allowed them to make decisions on their own when they embarked on campaigns far from the Mongol Empire capital Karakorum. Muqali, a trusted lieutenant, was given command of the Mongol forces against the Jin dynasty while Genghis Khan was fighting in Central Asia, and Subutai and Jebe were allowed to pursue the Great Raid into the Caucasus and Kievan Rus', an idea they had presented to the Khagan on their own initiative. While granting his generals a great deal of autonomy in making command decisions, Genghis Khan also expected unwavering loyalty from them.
The Mongol military was also successful in siege warfare, cutting off resources for cities and towns by diverting certain rivers, taking enemy prisoners and driving them in front of the army, and adopting new ideas, techniques and tools from the people they conquered, particularly in employing Muslim and Chinese siege engines and engineers to aid the Mongol cavalry in capturing cities. Another standard tactic of the Mongol military was the commonly practiced feigned retreat to break enemy formations and to lure small enemy groups away from the larger group and defended position for ambush and counterattack.
Another important aspect of the military organization of Genghis Khan was the communications and supply route or Yam, adapted from previous Chinese models. Genghis Khan dedicated special attention to this in order to speed up the gathering of military intelligence and official communications. To this end, Yam waystations were established all over the empire.
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, and many other nobilities of central Asian countries claimed descent from Genghis Khan. During the Soviet purge most of the Mongol nobility in Mongolia were purged.