The Yi Syllables block contains characters used in the Yi script, which is used to write the Yi language spoken by the Yi people in southwestern China. The Yi script is syllabic, meaning that each character represents a syllable rather than an individual phoneme. This block includes several hundred syllable characters, as well as a few additional marks for punctuation and tone. The Yi script was standardized in the 1970s, and this block reflects the modern form of the script, which is used in education, media, and cultural contexts among the Yi people..