right to left.) This is because the Uyghurs rotated their script 90 degrees anticlockwise to emulate the Chinese writing system. As a variant of the traditional script there exists a vertical square script (Босоо дөрвөлжин), also called folded script, used e.g. on the Mongolian banknotes. Galik alphabet In 1587, the translator and scholar Ayuush Güüsh created the Galik alphabet, inspired by Sonam Gyatso, the third Dalai Lama. It primarily added extra letters to transcribe Tibetan and Sanskrit terms in religious texts, and later also from Chinese and Russian. Later some of these letters officially merged to traditional alphabet as group named "Galig usug" to transcribe foreign word in today's use. Todo alphabet In 1648, the Oirat Buddhist monk Zaya Pandita created this variation with the goal of bringing the written language closer to the actual Oirat pronunciation, and to make it easier to transcribe Tibetan and Sanskrit. The script was used by Kalmyks of Russia until 1924, when it was replaced by the Cyrillic alphabet. In Xinjiang, China, the Oirats still use it. 'Phags-pa script (Square script) The traditional Mongolian alphabet is not a perfect fit for the Mongolian language, and it would be impractical to extend it to a language with a very different phonology like Chinese. Therefore, during the Yuan Dynasty (ca. 1269), Kublai Khan asked a Tibetan monk, Drogön Chögyal Phagpa, to design a new script for use by the whole empire. Phagpa extended his native Tibetan script to encompass Mongolian and Chinese; the result was known by several descriptive names, such as the Mongolian new script, but today is known as the 'Phags-pa script. The script did not receive wide acceptance and fell into disuse with the collapse of the Yuan dynasty in 1368. After this it was mainly used as a phonetic gloss for Mongols learning Chinese characters. However, scholars such as Gari Ledyard believe that in the meantime it was the source of some of the basic letters of the Korean hangul alphabet. Soyombo script The Soyombo script is an abugida created by the Mongolian monk and scholar Bogdo Zanabazar in the late 17th century, that can also be used to write Tibetan and Sanskrit. A special glyph in the script, the Soyombo symbol, became a national symbol of Mongolia, and has appeared on the national flag since 1921, and on the national coat of arms since 1992, as well as money, stamps, etc.