The Manchu alphabet () is the alphabet used to write the now nearly-extinct Manchu language. A similar script is used today by the Xibe people, who speak a language considered either as a dialect of Manchu or a closely related, mutually intelligible language. It is written vertically from top to bottom, with columns proceeding from left to right. History Tongki fuka akū hergen According to the (; ), in 1599 the Jurchen leader Nurhaci decided to convert the Mongolian alphabet to make it suitable for the Manchu people. He decried the fact that while illiterate Han Chinese and Mongolians could understand their respective languages when read aloud, that was not the case for the Manchus, whose documents were recorded by Mongolian scribes. Overriding the objections of two advisors named Erdeni and G'ag'ai, he is credited with adapting the Mongolian script to Manchu. The resulting script was known as () — the "script without dots and circles". Tongki fuka sindaha hergen In 1632, Dahai added diacritical marks to clear up a lot of the ambiguity present in the original Mongolian script; for instance, a leading k, g, and h are distinguished by the placement of no diacritical mark, a dot, and a circle, respectively. This revision created the standard script, known as () — the "script with dots and circles". As a result, the Manchu alphabet contains little ambiguity. Recently discovered manuscripts from the 1620s make clear, however, that the addition of dots and circles to Manchu script began before their supposed introduction by Dahai. Dahai also added the tulergi hergen ("foreign/outer letters"): ten graphemes to facilitate Manchu to be used to write Chinese, Sanskrit, and Tibetan loanwords. Previously, these non-Manchu sounds did not have corresponding letters in Manchu. Sounds that were transliterated included the aspirated sounds k' (Chinese pinyin: k, ), k (g, ), x (h, ); ts' (c, ); ts (ci, ); sy (si, ); dz (z, ); c'y (chi, ); j'y (zhi, ); and ž (r, ). 19th century – present By the middle of the nineteenth century, there were three styles of writing Manchu in use: standard script (ginggulere hergen), semi-cursive script (gidara hergen), and cursive script (lasihire hergen). Semicursive script had less spacing between the letters, and cursive script had rounded tails. The Manchu alphabet was also used to write Chinese. A modern example is in Manchu: a Textbook for Reading Documents, which has a comparative