At this time, Kuchanese monks began to travel to China. The fourth century saw yet further growth for Buddhism within the kingdom. The palace was said to resemble a Buddhist monastery, displaying carved stone Buddhas, and monasteries around the city were numerous. Kucha is well known as the home of the great fifth-century translator monk Kumārajīva (344-413). A monk from the royal family known as Po-Yen travelled to the Chinese capital, Luoyang, from 256-260. He translated six Buddhist texts into Chinese in 258 at China's famous White Horse Temple, including the "Infinite Life Sutra", an important sutra in Pure Land Buddhism. Po-Śrīmitra was another Kuchean monk who traveled to China from 307-312 and translated three Buddhist texts. A second Kuchean Buddhist monk known as Po-Yen also went to Liangzhou (modern Wuwei, Gansu, China) and is said to have been well respected, although he is not known to have translated any texts. The language of Kucha, as evidenced by surviving manuscripts and inscriptions, was Kuśiññe (Kushine) also known as Tocharian B or West Tocharian, an Indo-European language. Later, under the Uighur domination, the Kingdom of Kucha gradually became Turkic speaking. "Kuśiññe" was completely forgotten until the early 20th century, when inscriptions and documents in two related (but mutually unintelligible) languages were discovered at various sites in the Tarim Basin. Conversely, Tocharian A, or "Ārśi" was native to the region of "Turpan" (known later as Turfan) and "Agni" (Qarašähär; Karashar), although the "Kuśiññe" language also seems to have been spoken there. While they were written in a Central Asian Brahmi script used typically for Indo-Iranian languages, the Tocharian languages (as they became known by modern scholars) belonged to the centum group of Indo-European languages, which are otherwise native to southern and western Europe. The precise dating of known Tocharian texts is contested, but they were written around the 6th to 8th Centuries AD (although Tocharian speakers must have arrived in the region much earlier). Both languages became extinct before circa 1000 AD.