What is "phags-pa"

Phags-pa is a Unicode block containing characters from the 'Phags-pa script promulgated as a national script by Kublai Khan. It was used primarily in writing Mongolian and Chinese, although it was intended for the use of all languages of the Mongol Empire.

The block has six variation sequences defined for standardized variants.

Note that four vowel letters have positional variants:

Positional Forms of I, U, E, and O

Character

Isolate

Initial

Medial

Final

U+A85E PHAGS-PA LETTER I

U+A85F PHAGS-PA LETTER U

U+A860 PHAGS-PA LETTER E

U+A861 PHAGS-PA LETTER O