Dunhuang in the context of "Five Temple Caves"

Papermaking is the process of manufacturing paper and cardboard, which are widely used for printing, writing, and packaging, and numerous other purposes. Today almost all paper is made using industrial machinery, while handmade paper survives as a specialized craft and a medium for artistic expression.

In papermaking, a dilute suspension consisting mostly of separate cellulose fibres in water is drained through a sieve-like screen, so that a mat of randomly interwoven fibres is laid down. Water is further removed from this sheet by pressing, sometimes aided by suction or vacuum, or heating. Once dry, a generally flat, uniform and strong sheet of paper is achieved.

The Mogao Caves, also known as the Thousand Buddha Grottoes or Caves of the Thousand Buddhas, form a system of 500 temples 25 km (16 mi) southeast of the center of Dunhuang, an oasis located at a religious and cultural crossroads on the Silk Road, in Gansu province, China. The caves may also be known as the Dunhuang Caves; however, this term is also used as a collective term to include other Buddhist cave sites in and around the Dunhuang area, such as the Western Thousand Buddha Caves, Eastern Thousand Buddha Caves, Yulin Caves, and Five Temple Caves. The caves contain some of the finest examples of Buddhist art spanning a period of 1,000 years.

The first caves were dug out in 366 CE as places of Buddhist meditation and worship; later the caves became a place of pilgrimage, and caves continued to be built at the site until the 14th century. The Mogao Caves are the best known of the Chinese Buddhist grottoes and, along with Longmen Grottoes and Yungang Grottoes, are one of the three famous ancient Buddhist sculptural sites of China.

The Laṅkāvatāra Sūtra (Sanskrit: लङ्कावतारसूत्रम्, "Discourse of the Descent into Laṅkā", Standard Tibetan: ལང་ཀར་བཤེགས་པའི་མདོ་, Chinese: 入楞伽經) is a prominent Mahayana Buddhist sūtra. It is also titled Laṅkāvatāraratnasūtram (The Jewel Sutra of the Entry into Laṅkā, Gunabhadra's Chinese title: 楞伽阿跋多羅寶經 léngqié ābáduōluó bǎojīng) and Saddharmalaṅkāvatārasūtra (The Sutra on the Descent of the True Dharma into Laṅkā). A subtitle to the sutra found in some sources is "the heart of the words of all the Buddhas" (一切佛語心 yiqiefo yuxin, Sanskrit: sarvabuddhapravacanahṛdaya).

The Laṅkāvatāra recounts a teaching primarily between Gautama Buddha and a bodhisattva named Mahāmati ("Great Wisdom"). The sūtra is set in mythical Laṅkā, ruled by Rāvaṇa, the king of the rākṣasas. The Laṅkāvatāra discusses numerous Mahayana topics, such as Yogācāra philosophy of mind-only (cittamātra) and the three natures, the ālayavijñāna (store-house consciousness), the inner "disposition" (gotra), the buddha-nature, the luminous mind (prabhāsvaracitta), emptiness (śūnyatā) and vegetarianism.

Rammed earth, also called pisé, is a technique for constructing foundations, floors, and walls using compacted natural raw materials such as earth, chalk, lime, or gravel. It is an ancient method that has been revived recently as a sustainable building method.

Pisé also refers to a material for sculptures, usually small and made in molds. It has been especially used in Central Asia and Tibetan art, and sometimes in China.

Yumen Pass (simplified Chinese: 玉门关; traditional Chinese: 玉門關; pinyin: Yùmén Guān; Uyghur: قاش قوۋۇق, Qash Qowuq), or Jade Gate or Pass of the Jade Gate, is the name of a pass of the Great Wall located west of Dunhuang in today's Gansu Province of China. During the Han dynasty (202 BC – AD 220), this was a pass through which the Silk Road passed, and was the one road connecting Central Asia with East Asia (China), the former called the Western Regions. Just to the south was the Yangguan pass, which was also an important point on the Silk Road. These passes, along with other sites along the Silk Road, were inscribed in 2014 on the UNESCO World Heritage List as the Silk Roads: the Routes Network of Chang'an-Tianshan Corridor World Heritage Site. The pass is at an elevation of 1400 meters.

Irk Bitig or Irq Bitig (Old Turkic: 𐰃𐰺𐰴 𐰋𐰃𐱅𐰃𐰏‎), known as the Book of Omens or Book of Divination in English, is a 9th-century manuscript book on divination that was discovered in the "Library Cave" of the Mogao Caves in Dunhuang, China, by Aurel Stein in 1907, and is now in the collection of the British Library in London, England. The book is written in Old Turkic using the Old Turkic script (also known as "Orkhon" or "Turkic runes"); it is the only known complete manuscript text written in the Old Turkic script. It is also an important source for early Turkic mythology.

Darma U Dum Tsen (Tibetan: དར་མ་འུ་དུམ་བཙན, Wylie: dar ma 'u dum btsan), better known as Langdarma (Tibetan: གླང་དར་མ།, Wylie: glang dar ma, THL: Lang Darma, lit. "Mature Bull" or "Darma the Bull"), was the 41st and last king of the Tibetan Empire who in 838 killed his brother, King Ralpachen, then reigned from 841 to 842 CE before he himself was assassinated. His reign led to the dissolution of the Tibetan Empire, which had extended beyond the Tibetan Plateau to include the Silk Roads with the Tibetan imperial manuscript center at Sachu (Dunhuang), and neighbouring regions in China, East Turkestan, Afghanistan, and India. Langdarma was assassinated by Lhalung Pelgyi Dorje on year 842.

The Wusun (/ˈwuːsʌn/ WOO-sun) were an ancient semi-nomadic steppe people mentioned in Chinese records from the 2nd century BC to the 5th century AD.

The Wusun originally lived between the Qilian Mountains and Dunhuang (Gansu) near the Yuezhi. Around 176 BC the Xiongnu raided the lands of the Yuezhi, who subsequently attacked the Wusun, killing their king and seizing their land. The Xiongnu adopted the surviving Wusun prince and made him one of their generals and leader of the Wusun. Around 162 BC the Yuezhi were driven into the Ili River Valley in Zhetysu, Dzungaria and Tian Shan, which had formerly been inhabited by the Saka. The Wusun then resettled in Gansu as vassals of the Xiongnu. In 133–132 BC, the Wusun drove the Yuezhi out of the Ili Valley and settled the area.

A rime table or rhyme table (simplified Chinese: 韵图; traditional Chinese: 韻圖; pinyin: yùntú; Wade–Giles: yün-t'u) is a Chinese phonological model, tabulating the syllables of the series of rime dictionaries beginning with the Qieyun (601) by their onsets, rhyme groups, tones and other properties. The method gave a significantly more precise and systematic account of the sounds of those dictionaries than the previously used fǎnqiè analysis, but many of its details remain obscure. The phonological system that is implicit in the rime dictionaries and analysed in the rime tables is known as Middle Chinese, and is the traditional starting point for efforts to recover the sounds of early forms of Chinese. Some authors distinguish the two layers as Early and Late Middle Chinese respectively.

The earliest rime tables are associated with Chinese Buddhist monks, who are believed to have been inspired by the Sanskrit syllable charts in the Siddham script they used to study the language. The oldest extant rime tables are the 12th-century Yunjing ('mirror of rhymes') and Qiyin lüe ('summary of the seven sounds'), which are very similar, and believed to derive from a common prototype. Earlier fragmentary documents describing the analysis have been found at Dunhuang, suggesting that the tradition may date back to the late Tang dynasty.