Genghis Khan was born around 1162 under the name Temüjin in the area around Lake Baikal in modern day Mongolia. He was the son of Yesügei, the chief of the Kiyad tribe, and his mother Hoelun was from the Olkhunut tribe. At age 9, his father took him to live with the family of his future wife Börte. However, Yesügei was poisoned soon after while en route back home, leaving the family abandoned.


Temüjin and his family led a tough life for many years, living in poverty and relying on charity while he was still a boy. Several years later, Temüjin killed his older half-brother Begter for hoarding food and disobeying their mother. This act helped earn Temüjin authority despite his youth. Around 1178, Temüjin married Börte as previously arranged. However, she was soon kidnapped by the rival Merkit tribe shortly after and Temüjin had to rescue her with the help of his ally and future rival Jamukha.


Over the following years, Temüjin began building a power base among the Mongol tribes, attracting followers and building military strength. Many tribal leaders agreed to submit to his leadership after being defeated. His main rivals were Jamukha and Toghrul, the Kerait leader who had helped Temüjin rescue Börte years earlier. After growing conflicts with both rivals, Temüjin defeated them in 1203 and 1204 respectively to become the sole prominent leader among the Mongols.


In 1206, Temüjin formalized his leadership by founding the Mongol Empire. A great assembly or kurultai proclaimed him as the supreme leader and conferred upon him the new title of Genghis Khan, meaning “universal ruler”. He established a meritocratic method of organization and codified the rule of law among the previously fragmented tribes. Setting up his capital at Avarga near the Onon and Kherlen rivers, Genghis Khan initially focused his efforts against traditional Mongol rivals like the Naiman and Merkits to the west.


Genghis then aimed at the powerful Xia and Jin dynasties ruling northern China, correctly judging them to be economically and politically fragile. Starting in 1211, the Mongols invaded the Jin state, taking advantage of political turmoil to sweep through and capture numerous cities. The sudden departure of Genghis from the frontline to attend to the accidental death of his son Jochi helped halt the campaign. When it resumed from 1213-1214, the Mongols used superior strategy and mobility to annihilate the 500,000 man Jin army near Beijing in 1215.


Another child of Genghis, Ögedei was designated as the successor after proving himself on this campaign. The victory provided the Mongols control of the area around Beijing and enormous war booty while spreading terror at their name. Further rapid attacks against the Xia dynasty delivered more territorial gains for a Mongol nation that now bordered southern Siberia to the north and Tibet and the Yellow River basin from the west to south.


The destruction of Khwarezmia in Central Asia would mark the next phase of conquests under Genghis Khan. Its ruler had Governor Inalchuq of Otrar attacked and looted a commercial caravan sent by Genghis Khan in 1218 in defiance of treaties established. This fateful decision ignited retaliation from Genghis, who pronounced to his generals, “Will we too become servants of the Khwarezm Shah?”


Genghis quickly gathered experienced generals and a large army that may have totaled as many as 200,000 warriors for the upcoming campaign. The Mongols swept away Khwarezm’s defenses despite their previous unfamiliarity with siege warfare, circumventing fortified cities when possible and depending on urban Muslim merchants to help breach settlements. When Samarkand, Bukhara and other major cities offered resistance, the Mongols responded with a level of carnage and terror unseen anywhere before in the Islamic world.


However, the Khwarezm Shah escaped this onslaught by fleeing further west as his empire rapidly collapsed. Genghis Khan appointed his best generals to lead divisions in pursuing the Shah across Khorasan and Mazandaran while he returned home. Jebe and Subutai, two of them, would continue chasing their quarry as far the Caucasus and Crimea during this three year campaign, on what was one of the longest cavalry pursuits in history. Their forces were also the first Mongols to encounter the Georgians, Russians and Hungarians.


The range, coordination and logistics strength of the Mongol forces were key to their overwhelming victory, facilitated by employing tactics new to the region such as armored heavy cavalry with compound bows and mobile provisioning over large distances. The already legendary status of Genghis Khan reached new heights as tales of the Mongols’ unstoppable approach and merciless violence ricocheted across Persia and the Muslim world.


However, the victory extracted a cruel price on Genghis Khan when he returned to Mongolia in 1225. His second son Tolui had passed away, distressing all the Mongols and especially his father. Continuing power struggles in north China against the Jin required Genghis Khan to initiate what would be his last major campaign in 1226 despite his age. The Mongols captured cities like Kaifeng and besieged others like Yenking, when Genghis Khan fell seriously ill. He died in August 1227 after declaring his third son Ögedei as successor.


The death of Genghis Khan, one of history’s most monumental conquerors who had unified the Mongol people and led them to establishing the world’s largest contiguous empire, sparked deep mourning and uncertainty. The Mongols returned to their homeland in Mongolia to attend funeral rites and selection of the next Khan. Tradition dictated only direct descendants of Genghis Khan by birth could be Great Khans, and as challenges emerged to succession, it fell upon his widow Börte and officials to identify his sons and their validity. Ögedei emerged as successor but the unified empire still faced fracture without its founder at the helm.


However, the onset of Ögedei Khan’s reign in Mongolia confirmed the organizational structures and bureaucratic frameworks for unified leadership devised by his father remained intact. For the Mongol nation Genghis Khan had molded out of disparate tribes, his vision ensured empire building continued across Eurasia – adding new conquests like the Jin dynasty, Korea, Russian principalities and the Abbasid Caliphate – based on the blueprint he created incorporating tribal military institutions and traditional steppe diplomacy, underpinned by meritocracy and tolerance unseen elsewhere at the time.


Genghis Khan’s pivotal place in history derives not just from the enduring Mongol nation and conquests achieved under him that altered the world’s geopolitical landscape forever. He was also one of the most successful military commanders ever, who mastered strategy, logistics, tactics, mobility and campaign planning to overwhelm every adversary across tactical and operational levels.


Possessing great physical capabilities along with political and martial intelligence from a young age, Genghis Khan earned leadership and gained authority by protecting his family and defeating rival Mongol tribes before uniting them all. Through this turmoil, he refined the diplomatic and administrative wisdom that led to revolutionary governance changes providing stability as well as supporting his vision for world conquest.


His courage was singular – Genghis Khan suffered serious injuries at least five times in battles or hunting accidents across his life, each time returning to lead forces against enemy after enemy unfazed by bloodshed or setbacks. The steely nerve and iron discipline Genghis Khan expected from his commanders and army was an ethos only possible for someone like him who derived ferocious passion in defeating all challengers. Alongside the hardship and suffering endured in his early life, these experiences contributed to his seeking of power and willingness to execute violent, ruthless strategies when opposed.


Genghis Khan possessed the rare talent to inspire fierce personal loyalty in his followers, who formed capable and formidable generals when organized within a meritocratic hierarchy of privilege and responsibility. The seeds of political and military genius evidenced time and again on campaigns from Western Xia to the Khwarezmian Empire were sown under his guidance passed on to subsequent heirs and leaders of the Mongol Empire.


Ultimately for the illiterate but observant Genghis Khan who learned the customs and languages of every community his armies encountered, the wars and conquests were as much a voyage of discovery beyond the