The Mongols Erupt into the Lands of Islam

خروج التتر إلى بلاد الإسلام

c. 1220 CE · 617 AH

In 617 the Mongols erupted into the lands of Islam: a large people of Turks whose dwellings were the mountains of Tamghaj, on the side of China. Ibn al-Athir opens their story by saying that he had for years held back from recounting it, out of awe: who could bring himself to write the obituary of Islam and the Muslims, wishing he had died before it and been forgotten? He calls it a calamity such that the days and nights have been barren of its like, and says that had someone claimed no people since Adam had suffered its like, he would have spoken truly; what Nebuchadnezzar did to the Children of Israel, the killing and the wrecking of Jerusalem, is nothing beside it, since every city they ruined was many times Jerusalem. He describes how they came out from the edges of China and made for Turkistan, Kashghar and Balasaghun, then Transoxania, Samarkand and Bukhara; a detachment crossed into Khurasan and left it emptied of rule through ruin and plunder; then Rayy, Hamadan and the Jibal to the borders of Iraq, then Azerbaijan and Arran, then Darband of Shirvan, the lands of the Lan and the Lakz, and the Qipchaq, all in less than a year by the measure of their march alone. Alexander, whom the historians agree ruled the world, held it for about ten years; these took most of the inhabited world in about a year. He describes their way of life: they need no supply train, since their sheep, cattle, horses and mounts dig the earth with their hooves and eat plant roots; they know no barley; they prostrate to the sun at its rising, and they forbid none of the beasts. He explains their success: Khwarazm-shah Muhammad had seized those lands, killing and wiping out their kings, so that once he was beaten nothing stood to bar or defend them 1.

Depth

At a glance

Era
The Mongol and Post-Mongol Era
Region
Persia & Central Asia
Review
Draft Completeness 2/5 · Help complete it

In time

121012201230 c.
The Crusades, Ayyubids and Mamluks · The Mongol and Post-Mongol Era

Mongol invasions

Overview

In 617 AH the Mongols appeared in the lands of Islam. They were a large kind of Turks whose dwellings were in the mountains of Tamghaj from the direction of China, as Ibn al-Athir introduces them in "al-Kamil". 1

Ibn al-Athir on the event

Ibn al-Athir says that for years he avoided mentioning their news out of awe at it. He counts it as the great event before which the days and nights were barren, and says that what Nebuchadnezzar did to the Children of Israel cannot be compared to it. This is Ibn al-Athir's own judgement, not the museum's. 1

Their march

According to Ibn al-Athir they came out from the edges of China and made for Turkistan, Kashgar and Balasaghun, then beyond the river to Samarqand and Bukhara. A group crossed into Khurasan, then al-Rayy, Hamadhan and the lands of the Jibal to the edge of Iraq, then Azerbaijan and Arran. They reached the Derbent of Shirvan, the lands of the Lan and the Lakz, and the Qipchaq, in less than a year. 1

Their customs and why they prevailed

Ibn al-Athir describes that they did not need supplies, because they had their sheep, cattle and horses with them. He says they bowed to the sun at its rising and did not forbid any animal. He explains their success by saying that Muhammad, Khwarazm Shah, had seized the lands and destroyed their kings, so when he was defeated there was no barrier and no defender left. He mentions Genghis Khan in the course of this account. 1

Date

617 AH, with a Gregorian equivalent (around 1220 CE) that is derived. 2

Connections

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Had participant
جنكزخان قان التتار· خوارزم شاه علاء الدين محمد

People and things also explored

The battle that destroyed the Khitai· Perishing of the Khwarazmshah on an island in the Caspian Sea· Khwarazmshah's betrayal of the Tatar merchants and the killing of envoys· The Mongols Seize Mazandaran and the Treasures of Khwarazm-shah's Mother· death of Khwarazmshah Tekish· Ibn Khurmail killed; Herat besieged again· Khwarazmshah takes Ghazna and its dependencies· Khwarazmshah seizes the Ghurid lands in Khurasan

Sources

  1. al-Kamil fi'l-Tarikh of Ibn al-Athir , p. 399-401
  2. al-Kamil fi'l-Tarikh of Ibn al-Athir , p. 399
Cite this page

islam.museum contributors. “The Mongols Erupt into the Lands of Islam”. islam.museum, https://islam.museum/en/event/mongol-eruption-617/. CC BY-SA 4.0. Last updated 2026-10-22.

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Related

The battle that destroyed the Khitai

In 604 the surviving Khitai gathered under their king when word came that a great body of Tatars was advancing from beyond the lands of Turkistan under their king Kushli Khan, because of what Khwarazm-shah had done to the Khitai; they marched against them. The Khitai king sent to Khwarazm-shah asking him to overlook the past and come to his aid; Kushli Khan also sent to him, seeking his help against the Khitai, his enemies and the enemies of his fathers. Khwarazm-shah answered each that he was with him against the other, and marched his armies until he camped near the place of the encounter, without mixing with either side in a way that showed which he was, so that each took him to be on its side. The Khitai and the Tatars clashed, and the Khitai were routed in a great defeat. Khwarazm-shah fell upon them, killing, capturing and plundering; only a small band escaped, sheltering with their king in a place ringed by mountains with a single approach, and some of them joined his army. Kushli Khan then asked to share the lands of the Khitai, and Khwarazm-shah replied, 'You have nothing from me but the sword.' He advanced, courting him and raiding his baggage. Kushli Khan wrote to him: 'This is not the conduct of kings; it is the conduct of thieves. If you are a sultan, let us meet.' He did not answer, and ordered the people of Shash, Farghana, Isfijab and Kasan to leave for the lands of Islam, laying them waste for fear the Tatars would seize them. Then it happened that other Tatars, under their king Genghis Khan, rose against Kushli Khan and occupied him, and Khwarazm-shah crossed the river into Khurasan.