>(I also don't quite understand the semantics of a base character followed by tag characters, to say the truth.)
Page 2 of the following document is where the idea was introduced.
http://www.unicode.org/L2/L2015/15145r-add-regional-ind.pdf
The document is linked from the following page.
http://www.unicode.org/L2/L2015/Register-2015.html
William Overington
16 September 2016
Received on Fri Sep 16 2016 - 10:08:04 CDT
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