▁professor ▁in ▁ 1 9 5 8 . ▁Say ı l ı ▁retired ▁in ▁ 1 9 8 3 , ▁and ▁was ▁appointed ▁the ▁head ▁of ▁the ▁At at ür k ▁Culture ▁Center ▁in ▁ 1 9 8 4 . ▁His ▁term ▁last ed ▁until ▁ 1 9 9 3 . ▁He ▁also ▁served ▁as ▁member ▁of ▁the ▁Turkish ▁History ▁Society ▁and ▁International ▁Academy ▁of ▁History ▁of ▁Science . ▁ ▁Awards ▁In ▁ 1 9 7 3 , ▁A yd ı n ▁Say ı l ı ▁was ▁awarded ▁by ▁the ▁Polish ▁government ▁with ▁the ▁Cop ern icus ▁Medal ▁for ▁his ▁work ▁on ▁the ▁Polish ▁astronom er ▁Nicol aus ▁Cop ern icus . ▁▁ ▁In ▁ 1 9 7 7 , ▁he ▁was ▁decor ated ▁by ▁the ▁T Ü B İ TA K ▁Service ▁Award . ▁In ▁ 1 9 8 0 ▁he ▁was ▁selected ▁as ▁a ▁member ▁of ▁the ▁International ▁Editor ial ▁Committee ▁of ▁UN ES CO . ▁In ▁ 1 9 8 1 , ▁he ▁was ▁awarded ▁by ▁Ist an bul ▁University ▁the ▁Ex cell ent ▁Service ▁Award ▁and ▁in ▁ 1 9 9 0 ▁he ▁was ▁decor ated ▁by ▁the ▁UN ES CO ▁Award ▁for ▁his ▁lifetime ▁achiev ements . ▁ ▁Death ▁Say ı l ı ▁died ▁of ▁a ▁heart ▁attack ▁in ▁An k ara ▁on ▁ 1 5 ▁October ▁ 1 9 9 3 , ▁aged ▁ 8 0 . ▁He ▁was ▁buried ▁at ▁C eb e ci ▁C emetery ▁in ▁An k ara ▁on ▁ 1 8 ▁October ▁