The letter is also a part of the Finno-Ugric Livonian language alphabet, representing the /c/ sound.
The letter was proposed in the Buda Lexicon, a book published in 1825, which included two texts by Petru Maior, Orthographia romana sive Latino-valachica una cum clavi and Dialogu pentru inceputul limbei române, introducing ș for /ʃ/ and ț for /t͡s/.
[3] Full support of this letter has been available on Macintosh computer since Mac OS X and on PC since Windows Vista.
Although accessibility issues are a concern only on legacy systems, because of inertia or ignorance, or both, some newly-produced Romanian texts still use Ţ (T-cedilla, available from Unicode version 1.1.0, June 1993).
However, in order to correctly encode and render both S-comma and T-comma, one has to install the European Union Expansion Font Update.