Aydın Sayılı, Turkish historian and academic (b. 1913)
Aydın Sayılı (pronounced [ajdɯn ˈsajɯɫɯ]; 2 May 1913 – 15 October 1993) was a prominent Turkish historian of science. Sayılı's portrait is depicted on the reverse of the Turkish 5 lira banknote issued in 2009.