U+10539 "𐔹" Caucasian Albanian Letter Cha Unicode Character
U+10539 "𐔹" Caucasian Albanian Letter Cha is a character from the historical Caucasian Albanian alphabet, which was used primarily between the 5th and 12th centuries to write the Caucasian Albanian language, a script now associated with the modern Udi language community. This specific letter represents the sound "ch" as in "church" and belongs to a unique script rediscovered in medieval Armenian manuscripts, notably including Georgian and Armenian influences. The Caucasian Albanian alphabet was deciphered in the 20th century through study of a 15th century palimpsest from the Saint Catherine's Monastery, and the inclusion of this character in Unicode (version 7.0 in 2014) ensures its digital preservation for linguistic research and cultural heritage.