Born 1048 CE in Nishapur,  Persia  (today    known as Iran)     Omar Khayyam of Nishapur(Khayyam means "tent maker") .   He  was a   Mathematician,  Scientist, Astronomer, Philosopher & Poet. Khayam died in 1123 CE in Nishapur, Persia. 


 More about Khayam

Major Contributions:

- Jalali Calendar (more accurate than the Julian, and almost as accurate as the Gregorian intercalation system)

-bullet Contributions to Algebra (geometric solution of cubic equations)

-bullet Astronomical tables

-bullet And the Rubaiyat vb