Unicode Block - CJK Unified Ideographs Extension I

CJK Unified Ideographs Extension I is a collection of 622 rare and historically significant Chinese characters, primarily sourced from ancient dictionaries, bronze inscriptions, and Chu script bamboo slips from the Warring States period. These ideographs supplement earlier extension blocks by covering glyph forms that were previously unencoded, especially those used in paleographic research and classical text reconstruction. The characters in this set are largely archaic or variant forms, providing essential data for scholars studying the evolution of Chinese writing, yet they are not commonly used in modern everyday communication.