Erdeni Batur and the Great Code
1634–1640
Erdeni Batur khungtaiji consolidated the Oirat tribes in Zungharia. In 1640 a great assembly of Khalkha and Oirat nobles adopted the Ikh Tsaaz (Great Code), a pan-Mongol legal monument.
c. 1634 – 1758
The Oirat Dzungar Khanate was the last independent steppe empire. From Erdeni Batur through Galdan Boshugtu, Tsewang Rabtan and Galdan Tseren it ruled from the Ili to western Mongolia, Zhetysu and the Tarim, contesting the Qing for seven decades, until its destruction in 1755–1758 closed the 2,000-year era of steppe empires that began with the Xiongnu.
Assessments of the 1755–1758 destruction are contested: Wei Yuan's breakdown (40% smallpox, 30% killed, 20% fled) is treated as indicative, not statistical (Perdue 2005), and the label 'genocide' is itself debated.
This period has a page and its sources; the scroll-through chapter is not written yet.
1634–1640
Erdeni Batur khungtaiji consolidated the Oirat tribes in Zungharia. In 1640 a great assembly of Khalkha and Oirat nobles adopted the Ikh Tsaaz (Great Code), a pan-Mongol legal monument.
1671–1680
Galdan received the title Boshugtu Khan from the Fifth Dalai Lama in 1678, made Turpan and Hami tributary in 1679, and took Kashgar and Yarkand in 1680, installing Khoja Afaq over the Tarim.
1688
Galdan invaded Khalkha; the Tüsheet Khan and the First Jebtsundamba fled south: the road to the Khalkha submission at Dolonnor in 1691.
1696–1697
Kangxi's armies crushed Galdan at Jao Modo (Zuunmod, in the Terelj valley east of today's Ulaanbaatar) on 12 June 1696; Galdan died in April 1697, and the khanate continued under Tsewang Rabtan from the Ili.
1717–1720
Dzungar forces seized Lhasa (1717) and held Tibet until expelled by the Qing (1720): the high-water mark of Dzungar power.
1755–1758 · the sources disagree about this
Qing armies conquered Zungharia amid Amursana's revolt; the population was largely annihilated by massacre, smallpox, and flight. The 2,000-year age of steppe empires ended here.
The casualty breakdown (Wei Yuan: 40% disease, 30% killed, 20% fled) is indicative only; the label 'genocide' is debated.