**Fact 1**

During the day he was said to teach algebra and geometry and at night he would study astronomy.**Fact 2**

It is believed that he has written at least 1,000 four line verses of poetry.**Fact 3**

He and his colleagues are credited with accurately creating a calendar, including leap years, that depicted a correct average year length.

His work may have been the basis of extracting cubes and fourth roots or to extracting nth roots of numbers.

The treatise of Khayyam is considered as the first of parallels and axioms.

He not only studied under Sheik Muhammad Mansuri, but also under Imam Mowaffaw Nishapuri. Nishapuri is considered one of the greatest teachers of the Khorassan region.

When Sultan Malik Shah died, since Khayyam was his adviser, his widow turned against him and left for Mecca.

His poetry was not popularized until Edward FitzGerald studied and translated them.

Since Khayyam translates out to 'tent maker', it is said that he was born into a family of tent-makers.

His piece is one of the most important pieces on algebra written called "Treatise on Demonstration of Problems of Algebra".

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