Subheadings
The Latin Extended-B block contains ten subheadings for groups of characters: Non-European and historic Latin, African letters for clicks, Croation digraphs matching Serbian Cyrillic letters, Pinyin diacritic-vowel combinations, Phonetic and historic letters, Additions for Slovenian and Croatian, Additions for Romanian, Miscellaneous additions, Additions for Livonian, and Additions for Sinology. The Non-European and historic, African clicks, Croatian digraphs, Pinyin, and the first part of the Phonetic and historic letters were present in Unicode 1.0; additional Phonetic and historic letters were added for version 3.0; and other Phonetic and historic, as well as the rest of the sub-blocks were the characters added for version 1.1.
Read more about this topic: Latin Extended-B