类字母符号
歷史

下列與Unicode相關的文檔記錄了在本區塊中定義特定字符的目的和过程：
| 版本 | 最終碼位 | 碼位数 | UTC ID | L2（英语：） ID | WG2（英语：） ID | 文檔 |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0.0 | U+2100..2138 | 57 |  |  |  | （待考） |
| 1.0.0 | U+2100..2138 | 57 |  | L2/98-419 (pdf, doc （页面存档备份，存于）) |  | Aliprand, Joan, , , 1999-02-05  |
| 1.0.0 | U+2100..2138 | 57 | UTC/1999-017 |  |  | Davis, Mark, , 1999-06-02  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/99-176R |  | Moore, Lisa, , , 1999-11-04  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/05-137 |  | Freytag, Asmus, , 2005-05-10  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/05-108R |  | Moore, Lisa, , , 2005-08-26, Create a "Normative Name Alias" property and file in the UCD. Populate the property with names from the sections "Typos" and "Bad or misleading names" from document L2/05-137.  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/10-221 |  | Moore, Lisa, , , 2010-08-23  |
| 1.0.0 | U+2100..2138 | 57 |  |  | N3903 (pdf, doc （页面存档备份，存于）) | , , 2011-03-31, WG2 accepts to add the formal name alias "WEIERSTRASS ELLIPTIC FUNCTION" to 2118 SCRIPT CAPITAL P.  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/15-050R |  | Davis, Mark;  et al, , 2015-01-29  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/20-275R |  | Sargent, Murray, , 2021-01-05  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/20-281 |  | Hudson, John, , 2020-11-10  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/21-016R |  | Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Moore, Lisa; Liang, Hai, , , 2021-01-14  |
| 1.0.0 | U+2100..2138 | 57 |  | L2/21-009 |  | Moore, Lisa, , , 2021-01-27, The UTC accepts 52 variation sequences to distinguish roundhand and chancery style mathematical script alphabetic characters  |
| 3.0 | U+2139 | 1 |  |  | N1138 | LaBonté, Alain, , 1995-01-30  |
| 3.0 | U+2139 | 1 |  |  | N1203 （页面存档备份，存于） | Umamaheswaran, V. S.; Ksar, Mike, , , 1995-05-03  |
| 3.0 | U+2139 | 1 |  |  | N1303 (html, doc （页面存档备份，存于）) | Umamaheswaran, V. S.; Ksar, Mike, , 1996-01-26  |
| 3.0 | U+2139 | 1 |  | L2/97-128 | N1564 | Paterson, Bruce, , 1997-05-15  |
| 3.0 | U+2139 | 1 |  | L2/97-288 | N1603 （页面存档备份，存于） | Umamaheswaran, V. S., , , 1997-10-24  |
| 3.0 | U+2139 | 1 |  | L2/98-005R | N1682 | , 1997-12-17  |
| 3.0 | U+2139 | 1 |  | L2/98-320 | N1898 （页面存档备份，存于） | , 1998-10-22  |
| 3.0 | U+2139 | 1 |  |  | N1897 （页面存档备份，存于） | Paterson, Bruce; Everson, Michael, , 1998-10-22  |
| 3.0 | U+2139 | 1 |  | L2/99-010 | N1903 (pdf, html （页面存档备份，存于）, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , 1998-12-30  |
| 3.0 | U+2139 | 1 |  | L2/99-126 |  | Paterson, Bruce, , 1999-04-14  |
| 3.0 | U+2139 | 1 |  | L2/11-438 | N4182 （页面存档备份，存于） | Edberg, Peter, , 2011-12-22  |
| 3.0 | U+213A | 1 |  | L2/98-215 | N1748 （页面存档备份，存于） | Everson, Michael, , 1998-05-25  |
| 3.0 | U+213A | 1 |  | L2/98-281R (pdf, html （页面存档备份，存于）) |  | Aliprand, Joan, , , 1998-07-31  |
| 3.0 | U+213A | 1 |  | L2/98-292R (pdf, html （页面存档备份，存于）, Figure 1 （页面存档备份，存于）) |  | , , 1998-08-19  |
| 3.0 | U+213A | 1 |  | L2/98-292 | N1840 （页面存档备份，存于） | , , 1998-08-25  |
| 3.0 | U+213A | 1 |  | L2/98-301 | N1847 （页面存档备份，存于） | Everson, Michael, , 1998-09-12  |
| 3.0 | U+213A | 1 |  | L2/98-372 | N1884R2 (pdf, doc （页面存档备份，存于）) | Whistler, Ken;  et al, , 1998-09-22  |
| 3.0 | U+213A | 1 |  | L2/98-329 | N1920 （页面存档备份，存于） | , 1998-10-28  |
| 3.0 | U+213A | 1 |  | L2/99-010 | N1903 (pdf, html （页面存档备份，存于）, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , , 1998-12-30  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/00-119 | N2191R （页面存档备份，存于） | Whistler, Ken; Freytag, Asmus, , 2000-04-19  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/00-234 | N2203 (rtf, txt （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2000-07-21  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/00-115R2 |  | Moore, Lisa, , , 2000-08-08  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/01-050 | N2253 （页面存档备份，存于） | Umamaheswaran, V. S., , , 2001-01-21  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/01-012R |  | Moore, Lisa, , , 2001-05-21, Change the name of the proposed character at U+2140 from DOUBLE STRUCK CAPITAL SIGMA to DOUBLE STRUCK N-ARY SUMMATION.  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/01-227 |  | Whistler, Ken, , , 2001-05-22  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/01-184R |  | Moore, Lisa, , , 2001-06-18  |
| 3.2 | U+213D..2149, 214B | 14 |  | L2/01-344 | N2353 (pdf, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2001-09-09  |
| 3.2 | U+214A | 1 |  | L2/98-374 | N1887R （页面存档备份，存于） | Freytag, Asmus, , 1998-09-24  |
| 3.2 | U+214A | 1 |  | L2/99-010 | N1903 (pdf, html （页面存档备份，存于）, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , 1998-12-30  |
| 3.2 | U+214A | 1 |  | L2/00-091 | N2184 （页面存档备份，存于） | Freytag, Asmus, , 2000-03-14  |
| 3.2 | U+214A | 1 |  | L2/00-234 | N2203 (rtf, txt （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2000-07-21  |
| 3.2 | U+214A | 1 |  | L2/00-115R2 |  | Moore, Lisa, , 2000-08-08  |
| 4.0 | U+213B | 1 |  | L2/99-353 | N2056 （页面存档备份，存于） | , , 1999-07-29  |
| 4.0 | U+213B | 1 |  | L2/99-380 |  | , 1999-12-07  |
| 4.0 | U+213B | 1 |  | L2/99-380.3 |  | , 1999-12-07  |
| 4.0 | U+213B | 1 |  | L2/00-084 | N2182 （页面存档备份，存于） | , , 1999-12-07  |
| 4.0 | U+213B | 1 |  | L2/99-382 |  | Whistler, Ken, , , 1999-12-09  |
| 4.0 | U+213B | 1 |  | L2/00-066 | N2170 (pdf, doc （页面存档备份，存于）) | , , 2000-02-10  |
| 4.0 | U+213B | 1 |  | L2/00-073 | N2167 （页面存档备份，存于） | Karlsson, Kent, , 2000-03-02  |
| 4.0 | U+213B | 1 |  | L2/00-285 | N2244 （页面存档备份，存于） | , 2000-08-10  |
| 4.0 | U+213B | 1 |  | L2/00-291 |  | Everson, Michael, , 2000-08-30  |
| 4.0 | U+213B | 1 |  |  | N2282 （页面存档备份，存于） | , 2000-09-21  |
| 4.0 | U+213B | 1 |  | L2/01-349 | N2374R （页面存档备份，存于） | , 2001-09-03  |
| 4.0 | U+213B | 1 |  | L2/01-387 | N2390 （页面存档备份，存于） | Kim, Kyongsok, , 2001-10-13  |
| 4.0 | U+213B | 1 |  | L2/01-388 | N2392 （页面存档备份，存于） | Kim, Kyongsok, , 2001-10-16  |
| 4.0 | U+213B | 1 |  | L2/01-420 |  | Whistler, Ken, , , 2001-10-30  |
| 4.0 | U+213B | 1 |  | L2/01-458 | N2407 （页面存档备份，存于） | Umamaheswaran, V. S., , 2001-11-16  |
| 4.0 | U+213B | 1 |  | L2/02-372 | N2453 (pdf, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2002-10-30  |
| 4.1 | U+213C, 214C | 2 |  | L2/03-194 | N2590 （页面存档备份，存于） | Freytag, Asmus, , 2003-06-09  |
| 4.1 | U+213C, 214C | 2 |  | L2/04-406 |  | Freytag, Asmus; Sargent, Murray; Beeton, Barbara; Carlisle, David, , 2004-11-15  |
| 5.0 | U+214D | 1 |  | L2/04-394 | N2887 （页面存档备份，存于）, N2889 （页面存档备份，存于） | Stötzner, Andreas, , 2004-11-09  |
| 5.0 | U+214E | 1 |  | L2/05-076 |  | Davis, Mark, , 2005-02-10  |
| 5.0 | U+214E | 1 |  | L2/05-183 | N2957 （页面存档备份，存于） | Everson, Michael; Haugen, Odd Einar; Emiliano, António; Pedro, Susana; Grammel, Florian; Baker, Peter; Stötzner, Andreas; Dohnicht, Marcus; Luft, Diana, , 2005-08-02  |
| 5.0 | U+214E | 1 |  | L2/05-191 |  | Whistler, Ken, , 2005-08-02  |
| 5.0 | U+214E | 1 |  | L2/05-193R2 | N2960R （页面存档备份，存于） | Everson, Michael, , 2005-08-12  |
| 5.0 | U+214E | 1 |  |  | N2942 （页面存档备份，存于） | Freytag, Asmus; Whistler, Ken, , 2005-08-12  |
| 5.0 | U+214E | 1 |  | L2/05-180 |  | Moore, Lisa, , , 2005-08-17  |
| 5.0 | U+214E | 1 |  | L2/05-108R |  | Moore, Lisa, , , 2005-08-26  |
| 5.0 | U+214E | 1 |  |  | N2953 (pdf, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2006-02-16  |
| 5.1 | U+214F | 1 |  | L2/06-245 | N3217 （页面存档备份，存于） | Hudson, John;  et al, , 2006-07-27  |
| 5.1 | U+214F | 1 |  | L2/06-324R2 |  | Moore, Lisa, , , 2006-11-29  |
| 5.1 | U+214F | 1 |  | L2/07-268 | N3253 (pdf, doc （页面存档备份，存于）) | Umamaheswaran, V. S., , , 2007-07-26  |
 ↑  提案中建議的碼位和字符名稱可能與最終結果不同。  ↑  參見L2/13-207、L2/14-054、L2/14-063、L2/15-051A與L2/15-051B。  1 2  參閱「雜項符號和象形文字」區塊的歷史一節以查看更多與繪文字有關的文檔。  ↑  參見L2/10-458、L2/11-414、L2/11-415與L2/11-429。  ↑  參閱「雜項數學符號-B」區段的歷史一節以查看更多與數學有關的文檔。