Note: Two characters were moved from the Greek and Coptic block to the Combining Diacritical Marks block in version 1.0.1 during the process of unifying with ISO 10646.[1][2][3]
Combining Diacritical Marks is a Unicode block containing the most common combining characters. It also contains the character "Combining Grapheme Joiner", which prevents canonical reordering of combining characters, and despite the name, actually separates characters that would otherwise be considered a single grapheme in a given context. Its block name in Unicode 1.0 was Generic Diacritical Marks.[4]
Umamaheswaran, V. S. (2007-02-16), "m49.1g", Unconfirmed minutes of WG 2 meeting 49 AIST, Akihabara, Tokyo, Japan; 2006-09-25/29, Correct the glyphs for 0340 COMBINING GRAVE TONE MARK and 0341 COMBINING ACUTE TONE MARK to be the same as their canonical equivalent characters at 0300 and 0301 respectively.
Umamaheswaran, V. S. (2007-10-10), "M51.3c", Unconfirmed minutes of WG 2 meeting 51 Hanzhou, China; 2007-04-24/27, Correction to the glyphs for 0333 and 0347
Moore, Lisa (2008-08-19), "Consensus 116-C13", UTC #116 Minutes, Change the deprecated property by removing 0340, 0341, 17D3, and adding 0149, 0F77, 0F79, 17A4, 2329, 232A.
Moore, Lisa (2016-08-18), "Consensus 148-C3", UTC #148 Minutes, Change the glyph for U+033B COMBINING SQUARE BELOW to a horizontal rectangle as documented in L2/16-178.
Everson, Michael; Kolehmainen, Erkki I.; Ruppel, Klaas; Trosterud, Trond (2002-05-21), Justification for placing the Uralic Phonetic Alphabet in the BMP