Cherokee is a Unicode block containing the syllabic characters for writing the Cherokee language.
When Cherokee was first added to Unicode in version 3.0 it was treated as a unicameral alphabet, but in version 8.0 it was redefined as a bicameral script. The Cherokee block (U+13A0 to U+13FF) contains all the uppercase letters plus six lowercase letters. The Cherokee Supplement block (U+AB70 to U+ABBF), added in version 8.0, contains the rest of the lowercase letters. For backwards compatibility, the Unicode case folding algorithm—which usually converts a string to lowercase characters—maps Cherokee characters to uppercase.[3]
Moore, Lisa (2014-02-17), "Motion 138-M2", UTC #138 Minutes, Any proposal to make the Cherokee script bicameral, should make the existing Cherokee letters uppercase. The UTC deems that this choice would provide better backward compatibility with existing implementations.