This is a timeline of the Era of Fragmentation, the period of Tibetan history lasting from the death of the Tibetan Empire's last emperor, Langdarma, in 842 until Drogön Chögyal Phagpa gained control over the three provinces of Tibet in 1253 under Mongol rule.
9th century
Year Date Event 842 Langdarma dies and the Tibetan Empire enters its Era of Fragmentation; Tibet is split between Langdarma's sons in the west, and in the east 843 Karasahr and Kucha are occupied by the Kingdom of Qocho 847 Tibetan troops raid the Hexi Corridor but are defeated by Tang troops at Yanzhou 848 Zhang Yichao, a resident of Dunhuang, rebels and captures Shazhou and Guazhou from the Tibetans 849 Tibetan commanders and soldiers in seven garrisons west of Yuanzhou defect to the Tang 850 Zhang Yichao takes Hami, Ganzhou and Suzhou 851 Zhang Yichao captures Gaochang and Khotan becomes independent 866 Tibetans retreat to the Tibetan Plateau
10th century
Year Date Event 904 A popular revolt breaks out in Tibet 910 Popular revolt breaks Tibet into numerous principalities: Tsangto Yul, Rutsham Zhunye, Panyul, Yarlung, Tamshul Lhodrak, Cho, and Chokhor 925 The kingdom of See also Ngari Korsum for the modern administrative district is founded by Ösung's grandson, Kyide Nyimagon, in the capital of Purang 930 Ngari Khorsum splits into three kingdoms under Kyide Nyimagon's sons: Purang-Guge Kingdom controlled by Tashigon, Maryul controlled by Lhachen Dpalgyimgon, Zanskar and Spiti controlled by Detsugon 970 Songne becomes king of Purang-Guge Kingdom 975 Songne sends Rinchen Zangpo to study Buddhism in Kashmir 988 Songne abdicates to become a monk and changes his name to Yeshe-Ö; his brother Khore becomes king 996 Yeshe-Ö founds the Tholing Monastery 997 The elders of Amdo find a descendant of the Yarlung dynasty in Gaochang by the name of Qinanling Wenqianbu. They take him to Hezhou, where he is named Gusiluo, otherwise known as Gyelsé, meaning "son of Buddha". 998 Tabo Monastery is built by Rinchen-zangpo in Spiti
11th century
Year Date Event 1008 Gusiluo is enthroned at Kuozhou as Tsenpo. 1017 Tsongkha is defeated by the Song dynasty commander Cao Wei. 1020 Due to a large number of refugees from Punjab, Himachal Pradesh, and regions around Delhi fleeing Mahmud of Ghazni, the Ngari king passed a law restricting foreigners from staying in the country for more than three years 1024 King Ode of Purang-Guge expands his realm 1025 Gusiluo relocates to Miaochuan. 1032 Gusiluo relocates to Qingtang. Around the same time his eldest son Xiazhan establishes himself in Hezhou and his second son Mozhanjiao in Tsongkha. 1037 King Ode dies in battle against the Kara-Khanid Khanate near Skardu 1042 Atiśa, a Bengali Buddhist master, visits Ngari and stays at Mangnang Monastery for a year 1054 Tsongkha assists the Song army in resolving a dispute among Tibetan tribes. 1058 A Khitan princess marries Gusiluo's son Dongzhan. Dongzhan kills his brothers, Xiazhan and Mozhanjiao. 1065 Gusiluo dies and is succeeded by his son Dongzhan. Mucheng, son of Xiazhan, declares independence in Hezhou. 1070 The monks Jiewuchila and Kangzunxinluojie attempt to enthrone Mucheng's younger brother Donggu at Wushengjun but fail. 1072 The Song dynasty gains control of Wushengjun. Purang-Guge Kingdom splits into independent Guge and Purang, ruled by the brothers Tsede and Tsensong respectively; another brother Tsende may have founded the Khasa Kingdom 1074 Dongzhan and Mucheng submit to Song governance. 1076 King Tsede of Guge organizes the Toling Chokhor (religion conference for Tibetan and Indian Buddhists) 1099 Tsongkha is briefly occupied by the Song dynasty before regaining independence.
12th century
Year Date Event 1102 The Song dynasty occupy Tsongkha and rename Qingtang to Xining. 1109 The Song dynasty registers all the Tibetan towns of Kokonor under Chinese names. 1110 King Sonamtse's sons split Guge into three kingdoms 1120 Guge regent Jowo Gyalpo founds the kingdom of Khunu 1136 The Jin dynasty (1115–1234) incorporates the area of Tsongkha and cedes some territory to the Western Xia. 1150 The Khasa Kingdom emerges as the strongest power in Ngari 1159 The first Nyingma monastery since Langdarma is built
13th century
Year Date Event 1201 Sakya Pandita travels to India and studies under Indian gurus. He becomes a great religious and cultural figure and creates a Tibetan literary tradition inspired by Sanskrit poetry. 1220 The Khasa Kingdom expands into the territory of Garhwal and Kumaon 1230 Khabpa (Prince of Khab) establishes himself as ruler of Mangyül Gungthang 1239 The Khasa Kingdom defeats Mangyül Gungthang 1240 Mongol invasions of Tibet: Doorda Darkhan sacks Reting Monastery; a proxy administration is set up at Drigung Monastery 1252 Mongol invasions of Tibet: invades Tibet as far as Dangquka 1253 Kublai Khan meets Drogön Chögyal Phagpa and promotes the Sakya school of Tibetan Buddhism
References
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