Tiantishan Caves

The Tiantishan Caves () are a series of rock cut Buddhist cave temples in the Liangzhou District of Wuwei, Gansu, northwest China. Excavated from the eastern cliffs of the Huangyang River () in the Qilian Mountains from the time of the Northern Liang, carving, decoration and subsequent modification of the caves continued through the Northern Wei and Tang to the Qing dynasty. The complex is identified with the Liangzhou Caves opened during the time of Juqu Mengxun "one hundred li to the south of Liangzhou", as recorded in the Spring and Autumn Annals of the Sixteen Kingdoms and Fayuan Zhulin. The name Tiantishan consists of three Chinese characters () that literally translate as "Ladder to Heaven Mountain".

Caves The Tang monk Daoxuan in his Ji shenzhou sanbao gantong lu ascribes the opening of Tiantishan to the Xiongnu king of Northern Liang Juqu Mengxun's devotion to "meritorious deeds" alongside his desire to avoid the impermanence of the city by fashioning caves from the mountains. Contrary to the account in the Wei Shu of monks and Buddhist teachers relocating to the east after the conquest of the Northern Liang by the Northern Wei and subsequent persecution, structural, iconographic, and stylistic analysis shows that activity at the site continued. A total of nineteen caves in three tiers have been identified:

Cave Construction Modifications Type Cave 1 Northern Liang Northern Wei, Tang (beginning, early, mid, and late), Western Xia, Yuan, Ming, Qing central pillar Cave 2 beginning of the Tang early Tang, Western Xia, Ming square Cave 3 beginning of the Tang Western Xia, Ming square Cave 4 Northern Liang Northern Wei, Tang (early and mid), Western Xia, Yuan, Ming, Qing central pillar Cave 5 uncertain uncertain Cave 6 uncertain Tang, Ming, Qing square Cave 7 Northern Wei Northern Zhou, Western Xia, Yuan, Ming square Cave 8 Northern Wei Northern Zhou, Sui, Tang (early and mid), Song, Ming square Cave 9 Tang Ming square Cave 10 uncertain uncertain Cave 11 uncertain uncertain Cave 12 uncertain uncertain Cave 13 Tang Western Xia, Yuan, Ming, Qing Cave 14 Tang Western Xia, Yuan, Ming Cave 15 Northern Liang to Northern Wei Western Xia, Yuan, Ming Cave 16 Northern Wei Western Xia, Yuan Cave 17 Northern Liang to Northern Wei Sui, Tang (mid), Western Xia, Yuan, Ming Cave 18 Northern Liang Northern Wei, Tang (late), Western Xia, Yuan, Ming, Qing central pillar Cave 19 uncertain uncertain square

Later history

Tiantishan disappeared from the historical record after the Tang dynasty. While decoration and modification of the caves continued into the Qing dynasty, five suffered from collapse over the centuries, exacerbated by an earthquake in 1927. Despite initial survey in the early 1950s demonstrating the importance of the site, in April 1959 the Gansu provincial government approved the construction of a reservoir that would flood two of the three tiers of caves when commissioned in May the following year. In the interval, a research team from the Dunhuang Academy and Gansu Provincial Museum documented the site and excavated the collapsed caves, although all the written records and colour photographs and most of the black-and-white photographs have since been lost, along with most of the copies of the wall paintings. Some of the paintings were detached, although the colours have since "faded after 40 years of natural weathering", and other than for the largest, most of the sculptures were taken down and removed to the Museum. In 2001, in recognition of their significance as one of the earliest Buddhist grotto sites in the country, the Tiantishan Caves were designated a Major Historical and Cultural Site Protected at the National Level by SACH.

Tiantishan Caves

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