CJK Unified Ideographs Extension I Unicode Block

The CJK Unified Ideographs Extension I block is a significant addition to the vast repository of Han characters included in the Unicode Standard, principally designed to accommodate the diverse and complex written languages of East Asia. This block, extending from U+2EBF0 to U+2EBF0, is part of Unicode Version 3.1 and features a collection of additional ideographs that were not included in the earlier extensions. These characters are primarily used in the writing systems of Chinese, Japanese, and Korean—hence the acronym CJK. Furthermore, Extension I aims to support less common but historically significant characters from various literature, documents, and inscriptions that are vital for academic research and cultural preservation.

The development of the CJK Unified Ideographs Extension I was driven by the necessity to ensure a more comprehensive digital representation of characters, thereby facilitating better communication and data processing across different languages and regions that utilize Han scripts. By accommodating rare and obsolete characters, this extension enables a deeper exploration of classical texts and heritage documents, bolstering scholarly activities in linguistics and historical studies. As digital technology continues to infiltrate linguistic studies and documentation, the robust inclusion of CJK characters through extensions like I underscores Unicode's commitment to promoting linguistic diversity and cultural inclusivity in the digital age.

View a range of fonts that support the CJK Unified Ideographs Extension I block.

Below you will find all the characters that are in the CJK Unified Ideographs Extension I unicode block. Currently there are 622 characters in this block.