Not The Roadmap
This page lists scripts which, for one or another reason, are not
given tentative pre-allocations in the Roadmap tables for addition
to ISO/IEC 10646 and the Unicode Standard. Several categories are
provided, to indicate the reasons why a script might not be suitable
for pre-allocation in the Roadmap tables. For known scripts for
which there is enough information and sufficient reason to do some
rough pre-allocation, see instead the Roadmap tables for the BMP,
SMP, SIP, TIP, and SSP.
Known scripts which have been investigated, but which are
unified with existing encoded scripts.
Scripts (or pseudoscripts) which have been investigated and
rejected as unsuitable for encoding.
Known scripts, with enough information, but insufficient
reason to provide pre-allocation.
Known scripts, but insufficient information to do a decent job
of rough pre-allocation, and/or insufficient to know whether a
pre-allocation is warranted.
Things rumored to be scripts, but not clearly enough attested
for us to even determine whether they are "known scripts".
- Tărtăria (Old European ideographs from Romania)