Bopomofo is a Unicode block containing phonetic characters for Chinese. The original set of 40 Bopomofo characters is based on the Chinese standard GB 2312. Additional Bopomofo characters can be found in the Bopomofo Extended block.

Block

Bopomofo[1][2] (PDF)
0123456789ABCDEF
U+310x
U+311x
U+312x
Notes 1.^ As of Unicode version 17.0 2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Bopomofo block:

VersionFinal code pointsCountL2 IDWG2 IDDocument
1.0.0U+3105..312C40(to be determined)
Lunde, Ken (2014-08-01), BOPOMOFO LETTER I
Reply to your company's inquiry to usage of Bopomofo Letter I, 2014-08-20
Moore, Lisa (2014-10-17), "Bopomofo Letter I (B.15.1)", UTC #140 Minutes
, )Umamaheswaran, V. S. (2015-09-01), "M63.11u", Unconfirmed minutes of WG 2 meeting 63, Rotate the glyph for 3127 BOPOMOFO LETTER I by 90 degrees, with an appropriate change in the annotation, per request in document N4609
5.1U+312D1Everson, Michael; Ho, H. W.; West, Andrew (2006-10-19), Proposal to encode one Bopomofo character in the UCS
Moore, Lisa (2006-11-29), "Consensus 109-C24", UTC #109 Minutes
Proposal to encode two Bopomofo characters in UCS, 2007-04-20
, )Umamaheswaran, V. S. (2007-07-26), "M50.19", Unconfirmed minutes of WG 2 meeting 50, Frankfurt-am-Main, Germany; 2007-04-24/27
10.0U+312E1West, Andrew; Liang, Hai (2015-10-22), Discussion of 2CEF1
Moore, Lisa (2015-11-16), "Consensus 145-C20", UTC #145 Minutes, Approve U+312E BOPOMOFO LETTER O WITH DOT ABOVE for encoding in a future version of the standard. See document L2/15-270.
"M64.05e", Unconfirmed minutes of WG 2 meeting 64, 2016-08-31
11.0U+312F1West, Andrew (2016-04-21), Proposal to encode one Bopomofo letter
Moore, Lisa (2016-05-20), "C.16", UTC #147 Minutes
TCA Feedback on JTC1/SC2/WG2 N4717, 2016-09-22
, )"7.2.1 T1", Unconfirmed minutes of WG 2 meeting 65, 2018-03-16

See also