Hakim omare khayyam Naishaboori:
This astronomer , Mathematician , Philosopher , Doctor &
Great poet of Iran was born in Naishaboor in the first of
5th century & spent most of his life in there, But he
traveled to The other cities of Khorasan , Iraq , Baghdad,
Isfehan , Marv & Balkh (north east of Iran)
one of his scientific works is jaliali calendar that is more
exact than Grigouri calendar & these his valuable works
wrote his name in the science history.
But his fame (in Iran) is his Rubaiyat (The poems have 2
distiches) that the first time was translated to English by
an Englishman named: Edward FitzGerald.
Another his science works are: The triangle of khayyam-sakri ,The triangle arithmetical of khayyam-paskal etc.This great scientist was died in 517 A.H (1096 A.D) in Naishaboor & was buried there.