CJK Unified Ideographs Extension E

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Short description: Unicode character block
CJK Unified Ideographs Extension E
RangeU+2B820..U+2CEAF
(5,776 code points)
PlaneSIP
ScriptsHan
Assigned5,762 code points
Unused14 reserved code points
Unicode version history
8.05,762 (+5,762)
Note: [1][2]

CJK Unified Ideographs Extension E is a Unicode block containing rare and historic CJK ideographs for Chinese, Japanese, Korean, and Vietnamese submitted to the Ideographic Research Group between 2006 and 2013, excluding the characters submitted as "urgently needed" between 2006 and 2009, which were included in CJK Unified Ideographs Extension D.[3]

The block has dozens of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[4][5] These sequences specify the desired glyph variant for a given Unicode character.

Block

History

The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension E block:

Version Final code points[lower-alpha 1] Count L2 ID WG2 ID IRG ID Document
8.0 U+2B820..2CEA1 5,762 L2/04-185 Jenkins, John (2004-06-07), Propsed [sic] Extension C2 Submission 
L2/06-364 Jenkins, John (2006-11-01), Proposed UTC C2 Submission 
L2/06-365 Jenkins, John (2006-11-01), Proposed UTC C2 Non-submission 
L2/06-366 Jenkins, John (2006-11-08), Status of Characters Submitted to the UTC for Inclusion in the Standard 
L2/11-243 N4111 Sources for Orphaned CJK Ideographs, 2011-06-14 
L2/11-254 Constable, Peter (2011-06-20), UTC Liaison Report from WG2 
N4103 Unconfirmed minutes of WG 2 meeting 58, 2012-01-03 
N4358 Proposal Summary Form - CJK Unified Ideograph Extension E, 2012-10-10 
N4358-A Code charts for CJK Unified Ideograph Extension E, 2012-10-10 
N4358-B Spread sheet for CJK Unified Ideograph Extension E, 2012-10-10 
N4439 N1948 CJK_E Correction, 2013-05-22 
N4353 (pdf, doc) Unconfirmed minutes of WG 2 meeting 60, 2013-05-23 
L2/13-132 Moore, Lisa (2013-07-29), UTC #136 Minutes, "Accept 5762 CJK characters at U+2B820..U+2CEA1 with block CJK Extension E at U+2B820..U+2CEAF, with code points and glyphs as shown in L2/13-151 for encoding in a future version of the standard." 
N4403 (pdf, doc) Umamaheswaran, V. S. (2014-01-28), Unconfirmed minutes of WG 2 meeting 61, Holiday Inn, Vilnius, Lithuania; 2013-06-10/14 
L2/14-094 Chung, Jaemin (2014-04-24), Extension F1 and Extension E unification issue 
L2/15-216 Lunde, Ken (2015-08-14), Request for kTotalStrokes Data for Extension E & Beyond 
N4739 Unconfirmed minutes of WG 2 meeting 64, 2016-08-31 
L2/17-180 N2202 Chan, Eiso (2017-06-02), Request for consideration to add kIRG_GSource values to thirteen ideographs and change two G-source glyphs for the Table of General Standard Chinese Characters [Affects U+2BD77, U+2C494, U+2C72F, and U+2CB38] 
N4974 N2301 Request of TCA's Horizontal Extension for Chemical Terminology [Affects U+2BA52 and U+2C734], 2018-06-12 
N4987 Proposal on China's Horizontal Extension for 14 CJK Ideographs [Affects U+2BD77, 2C494, 2C72F and 2CB38], 2018-06-13 
N5020 (pdf, doc) Umamaheswaran, V. S. (2019-01-11), Unconfirmed minutes of WG 2 meeting 67 
L2/19-242 N5094 N2370 Chan, Eiso (2019-02-14), 20 questionable V4-Source characters in Ext. C and Ext. E [Affects U+2B83C, U+2B8D9, U+2B8DA, U+2B96F, U+2BBD7, U+2BD61, U+2BE4A, U+2BF9D, U+2C0B8, U+2C142, U+2C316, U+2C3FB, U+2C402, U+2C82C, U+2C83A, U+2C9A1, and U+2CC88] 
N2369 Chan, Eiso (2019-05-06), Feedback on IRGN2369 [Affects U+2C176 and U+2DE4A] 
N5086 N2379 Proposal of China's horizontal extension for technical used characters [Affects U+2BF1D and U+2C7AC], 2019-05-10 
L2/19-237 N5068 Editorial Report on Miscellaneous Issues (meeting IRG#52) [Affects U+2B83C, U+2B8D9, U+2B8DA, U+2B96F, U+2BBD7, U+2BD61, U+2BE4A, U+2BF9D, U+2C0B8, U+2C142, U+2C316, U+2C3FB, U+2C402, U+2C82C, U+2C83A, U+2C9A1, and U+2CC88], 2019-05-17 
L2/19-244 N5107 TCA's UNC Proposal for WG2 submission [Affects U+2CD68], 2019-05-24 
L2/22-256 N2580R T-Source Glyph Correction and Horizontal Extension [Affects U+2C816], 2022-10-18 
L2/22-247 Lunde, Ken (2022-11-01), CJK & Unihan Group Recommendations for UTC #173 Meeting 
L2/22-241 Constable, Peter (2022-11-09), Approved Minutes of UTC Meeting 173 
  1. ↑ Proposed code points and characters names may differ from final code points and names

References

  1. ↑ "Unicode character database". The Unicode Standard. https://www.unicode.org/ucd/. 
  2. ↑ "Enumerated Versions of The Unicode Standard". The Unicode Standard. https://www.unicode.org/versions/enumeratedversions.html. 
  3. ↑ "18.1: Han (§ Blocks Containing Han Ideographs)", The Unicode Standard: Core Specification, Version 15.0: pp. 741–744, 2022, ISBN 978-1-936213-32-0, https://www.unicode.org/versions/Unicode15.0.0/ch18.pdf#page=6 
  4. ↑ "Ideographic Variation Database". Unicode Consortium. https://www.unicode.org/ivd/. 
  5. ↑ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium. https://www.unicode.org/reports/tr37/. 



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