Silent letterIn an alphabetic writing system, a silent letter is a letter that, in a particular word, does not correspond to any sound in the word's pronunciation. In linguistics, a silent letter is often symbolised with a null sign . Null is an unpronounced or unwritten segment. The symbol resembles the Scandinavian letter Ø and other symbols. English orthography One of the noted difficulties of English spelling is a high number of silent letters. Edward Carney distinguishes different kinds of "silent" letters, which present differing degrees of difficulty to readers.
Yuan dynastyThe Yuan dynasty (), officially the Great Yuan (; Mongolian: , Yeke Yuwan Ulus, literally "Great Yuan State"), was a Mongol-led imperial dynasty of China and a successor state to the Mongol Empire after its division. It was established by Kublai (Emperor Shizu or Setsen Khan), the fifth khagan-emperor of the Mongol Empire from the Borjigin clan, and lasted from 1271 to 1368. In Chinese history, the Yuan dynasty followed the Song dynasty and preceded the Ming dynasty.
Cyrillic alphabetsNumerous Cyrillic alphabets are based on the Cyrillic script. The early Cyrillic alphabet was developed in the 9th century AD and replaced the earlier Glagolitic script developed by the Byzantine theologians Cyril and Methodius. It is the basis of alphabets used in various languages, past and present, Slavic origin, and non-Slavic languages influenced by Russian. As of 2011, around 252 million people in Eurasia use it as the official alphabet for their national languages. About half of them are in Russia.
East AsiaEast Asia is the easternmost region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. Hong Kong and Macau, two small coastal quasi-dependent territories located in the south of China, are officially highly autonomous but are under Chinese sovereignty. Japan, Taiwan, South Korea, Mainland China, Hong Kong, and Macau are some of the world's largest and most prosperous economies.
Secret History of the MongolsThe Secret History of the Mongols (Middle Mongol: Mongɣol‐un niɣuca tobciyan; Traditional Mongolian: Mongɣol‐un niɣuca tobcii'a, Khalkha Mongolian: Монголын нууц товчоо, ; ) is the oldest surviving literary work in the Mongolian language. It was written for the Mongol royal family some time after the 1227 death of Genghis Khan (born Temujin). The author is anonymous and probably originally wrote in the Mongolian script, but the surviving texts all derive from transcriptions or translations into Chinese characters that date from the end of the 14th century and were compiled by the Ming dynasty under the title The Secret History of the Yuan Dynasty ().
Arabic numeralsArabic numerals are the ten symbols most commonly used to write numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. The term often implies a decimal number, in particular when contrasted with Roman numerals, however the symbols are also used for writing numbers in other systems such as octal, and for writing identifiers such as computer symbols, trademarks, or license plates. They are also called Western Arabic numerals, Ghubār numerals, Hindu-Arabic numerals, Western digits, Latin digits, or European digits.
