Modun

Modu () was the son of Touman and the founder of the empire of the Xiongnu. He came to power by ordering his men to kill his father in 209 BCE.

Modu ruled from 209 to 174 BCE. He was a military leader under his father Touman and later ''chanyu'' of the Xiongnu Empire, based on the Mongolian Plateau. He secured the throne and established a powerful Xiongnu Empire by successfully unifying the tribes of the Mongolian–Manchurian grassland in response to the loss of Xiongnu pasture lands to invading Qin forces commanded by Meng Tian in 215 BCE.

While Modu rode and then furthered the wave of militarization and effectively centralized Xiongnu power, the Qin quickly fell into disarray with the death of the first emperor in 210 BCE, leaving Modu a free hand to expand his empire into one of the largest of his time.

The eastern border stretched as far as the Liao River, the western borders of the empire reached the Pamir Mountains, whilst the northern border reached Lake Baikal. Modu's raids into China resulted in the dynasty agreeing to pay an annual tribute alongside other goods such as silk, grain and rice. Modu was succeeded by his son Laoshang.

Name

His name is reconstructed as *' in Later Han Chinese and ' in Middle Chinese. The name's Old Chinese pronunciation might have represented the pronunciation of the foreign word ''*baɣtur'', a relative of the later attested Central Eurasian culture word '' baɣatur'' "hero". According to Gerard Clauson, ''bağatur'', transcribed by Chinese with ''-n'' for foreign ''-r'', was by origin almost certainly a " Hunnic" (Xiongnu) proper name.

His name was also read as MC ' (; following Sima Zhen's commentary on '' Shiji'') and MC ' (; following Song Qi's commentary on '' Hanshu''), the latter of which, according to Pulleyblank (1999), "does not make sense" phonologically.

Origins and rise to power

According to Sima Qian, Modu was a gifted child but his father Touman wanted the son of another of his wives to succeed him. To eliminate Modu as a competitor to his chosen heir, Touman sent the young Modu to the Yuezhi as a hostage; then he attacked the Yuezhi in the hope that they would kill Modu as retribution. However, Modu escaped by stealing a fast horse and returned to the Xiongnu, who welcomed him as a hero. As reward for this show of bravery, his father appointed him the commander of 10,000 horsemen.

Due to his reputation for bravery, Modu began to gather a group of extremely loyal warriors. He invented a signaling arrow that made a whistling sound in flight and trained his men to shoot in the direction of the sound in synchrony. To be sure of his men's loyalty, Modu commanded the warriors to shoot his favourite horse, any who refused to do so were summarily executed. He later repeated this test of loyalty, but with one of his favourite wives and once again executed those who hesitated to carry out his order. Only when he was convinced of the absolute loyalty of his remaining warriors did he order them to shoot his father during a hunting trip, killing him in a shower of arrows. With none of his followers failing to shoot at his command and with the removal of his father, Modu proclaimed himself ''chanyu'' of the Xiongnu.

After his self-proclaimed ascension as ''chanyu'', Modu began to eliminate those who would prove a threat to his newly acquired power. Thus, he proceeded to execute his rival half-brother, his step-mother and other Xiongnu officials who refused to support his rule.

Rise of the Xiongnu Empire

Modu's Xiongnu Empire aggressively protected and expanded their territory. When their eastern neighbors, the Donghu, expressed desire to occupy uninhabited land between them, Modu reacted by attacking them. By 208 BCE, the Donghu had been defeated and their remnants split into the Xianbei and Wuhuan