Statues of 4 Iranian Scientists,Astronomer,Physisian opposit the Building of UN office in Wien Austria

, was a Persian who wrote almost 450 works on a wide range of subjects, of which around 240 have survived. In particular, 150 of his surviving works concentrate on philosophy and 40 of them concentrate on medicineHis most famous works are, a vast philosophical and scientific encyclopedia , andwhich was a standard medical text at many medieval universities.

Abu reyhan Biruni,

(born 4/5 September 973 in Kath, Khwarezm,] died 13 December 1048 in Ghazni)was a Persian–Khwarezmian Muslim scholar and polymath from the Khwarezm region.Al-Biruni is regarded as one of the greatest scholars of the medieval Islamic era and was well versed in physics, mathematics, astronomy, and natural sciences

Umar Khayyam Nishaburi,

(18 May 1048 – 4 December 1131; Persian‎, was a Persian polymath, philosopher, mathematician, astronomer and poet. He also wrote treatises on mechanics, geography, mineralogy, music

Muhammad ibn Zakariyā Rāzī(Persian(854 CE – 925 CE), was a Persian,polymath, physician, alchemist and chemist, philosopher and important figure in the history of medicine and as the discoverer of alcohol and vitriol (sulfuric acid) is well known.[