Aydın Sayılı

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.

[3] His career was aided by a chance meeting with Mustafa Kemal Atatürk, whom he impressed enough to receive a state-supported scholarship to attend Harvard University, where he studied the history of science.

[3] In 1942, Sayılı obtained a PhD degree in the history of science at Harvard University under the supervision of George Sarton.

[6] Sayılı died of a heart attack in Ankara on 15 October 1993, aged 80.

Reverse of the 5 Turkish lira banknote (2009)