U+11CB0 "𑲰" Marchen Vowel Sign Aa Unicode Character

U+11CB0 "𑲰" Marchen Vowel Sign Aa is a combining vowel sign used in the Marchen script, a historically significant abugida employed to write the Zhangzhung language in the ancient Shangshung kingdom of western Tibet. This specific character represents the long "aa" vowel sound and attaches to a consonant letter to modify its inherent vowel, functioning as a diacritical mark rather than an independent letter. Its inclusion in Unicode helps preserve and digitally represent the Marchen language, which is linked to the cultural and religious heritage of the Bön tradition and the early history of the Tibetan region.