Al-Taftazani
... that 14th-century Turkish polymath Al-Taftazani completed one of his best-known works at the age of 16?
... that 14th-century <a href="./Turkey" id="mwCMc" rel="mw:WikiLink" title="Turkey">Turkish</a> <a href="./Polymath" id="mwCMg" rel="mw:WikiLink" title="Polymath">polymath</a> <b id="mwCMk"><a href="./Al-Taftazani" id="mwCMo" rel="mw:WikiLink" title="Al-Taftazani">Al-Taftazani</a></b> completed one of his best-known works at the age of 16?