Literary Chinese for all formal writing, including administration and scholarship, until the early 20th century. Around 3,000 words entered Vietnamese over this period. Some of these were re-introductions of words borrowed at the Old Sino-Vietnamese stage, with different pronunciations due to intervening sound changes in Vietnamese and Chinese, and often with a shift in meaning. Wang Li followed Henri Maspero in identifying a problematic group of forms with "softened" initials g-, gi, d- and v- as Sino-Vietnamese loans that had been affected by changes in colloquial Vietnamese. Most scholars now follow André-Georges Haudricourt in assigning these words to the Old Sino-Vietnamese layer. Sino-Vietnamese shows a number of distinctive developments from Middle Chinese: Sino-Vietnamese distinguishes Early Middle Chinese palatal and retroflex sibilants, which are identified in all modern Chinese varieties, and had already merged by the Late Middle Chinese period. Sino-Vietnamese reflects Late Middle Chinese labiodental initials, which were not distinguished from labial stops at the Early Middle Chinese phase. Middle Chinese grade II finals yield a palatal medial -y- like northern Chinese varieties but unlike southern ones. For example, Middle Chinese kæw yields SV , Cantonese gaau and Beijing . Modern compounds Up until the early 20th century, Literary Chinese was the vehicle of administration and scholarship, not only in China, but also in Vietnam, Korea and Japan, similar to Latin in medieval Europe. Though not a spoken language, this shared written language was read aloud in different places according to local traditions derived from Middle Chinese pronunciation: the literary readings in various parts of China and Sino-Xenic pronunciations in the other countries. As contact with the West grew, Western works were translated into Literary Chinese and read by the literate. In order to translate words for new concepts (political, religious, scientific, medical and technical terminology) scholars in these countries coined new compounds formed from Chinese morphemes and written with Chinese characters. The local readings of these compounds were readily adopted into the respective local vernaculars of Japan, Korea and Vietnam. For example, the Chinese mathematician Li Shanlan created hundreds of translations of mathematical terms, including ('replace-number-study') for 'algebra', yielding modern Chinese dàishùxué, Vietnamese đại số học, Japanese daisūgaku and Korean daesuhak. Often, multiple compounds for the same concept were in circulation for some time before a winner emerged, with the final choice sometimes differing between countries. A fairly large amount of Sino-Vietnamese compounds have meanings that differ significantly from