Omar Khayyam

Omar Khayyam (1048–1131) was a Persian poet and polymath, known for his contributions to mathematics, astronomy, philosophy, and Persian literature. He was born in Nishapur, Iran and lived during the Seljuk era, around the time of the First Crusade.

As a mathematician, Omar Khayyam was the first to provide a general solution for all third-degree polynomials by using the intersection of two conic sections. He also contributed to a deeper understanding of Euclid's parallel axiom. As an astronomer, he calculated the duration of the solar year with remarkable precision and accuracy, and designed the Jalali calendar, a solar calendar with a very precise 33-year intercalation cycle which provided the basis for the Persian calendar that is still in use after nearly a millennium.

There is a tradition of attributing poetry to Omar Khayyam, written in the form of quatrains (rubāʿiyāt). This poetry became widely known to the English-speaking world in a translation by Edward FitzGerald (Rubaiyat of Omar Khayyam, 1859).

Life

Ghiyāth al-Dīn Abū al-Fatḥ ʿUmar ibn Ibrāhīm Nīshāpūrī was born in Nishapur—a metropolis in Khorasan province of the Seljuk Empire, of Persian stock, in 1048. Known as Omar Khayyam, he grew up in a place that had once been important for the Zoroastrian religion. He learned to read the Quran when he was young and studied many subjects, including science, math, and stars.

Later, he traveled to work on improving the Persian calendar. He and his team figured out the length of a year very accurately. After this work ended, he returned to his hometown, where he lived quietly until he passed away in 1131.

Mathematics

Omar Khayyam was well known as a mathematician. His surviving works include writings on geometry, algebra, and numbers.

Khayyam wrote about geometry, especially about shapes and how they relate to each other. He also worked on solving equations, which are math problems where you need to find an unknown number. He was the first to provide a general way to solve certain kinds of equations using shapes, a method that influenced later mathematicians.

He also explored numbers and how they can be broken down into smaller parts, showing deep understanding of how numbers work together.

Astronomy

Main article: Jalali calendar

In 1074–5, Omar Khayyam was asked by Sultan Malik-Shah to build an observatory at Isfahan and improve the Persian calendar. He worked with a group of scholars to observe the stars and update the calendar’s tables. They set the start of the year to match when the Sun is directly above Earth’s equator, marking the beginning of spring or Nowrūz.

The new calendar, called the Jalālī calendar, began on 15 March 1079. It was a solar calendar where each month matched the Sun’s path through a section of the sky called the Zodiac. The calendar used a special 33-year cycle to keep dates correct. It stayed in use in parts of Greater Iran until the 20th century and was even more accurate than the Gregorian calendar we use today.

Other works

See also: Specific gravity

Omar Khayyam wrote a short book about how to measure the amounts of gold and silver in a mixture. He explained a clever way to do this by weighing the mixture in air and then in water, which makes it easier to find the exact weight of each metal.

He also wrote about music and how it relates to numbers. In this work, he organized different musical scales and talked about the math behind musical notes and chords.

Poetry

Omar Khayyam was known for his poetry, especially a type called Rubiyat, or quatrains. Historians from his time and later mentioned his poems, but it is hard to know for sure which ones he actually wrote. Some of his poems were written down many years after he lived.

One reason Omar Khayyam became very famous in later times was because of a translation of his poems by Edward FitzGerald in 1859. FitzGerald’s translation, called Rubaiyat of Omar Khayyam, became very popular in England and many other places.

Philosophy

Omar Khayyam thought of himself as a student of Avicenna. He wrote several philosophical papers, including one called On existence, which looks at how existence relates to general ideas. Another paper, written in Arabic, talks about free will and determinism.

Khayyam’s poetry has been interpreted in many ways. Some see it as expressing pessimism or skepticism about religion, while others think it has deep spiritual, or Sufi, meanings. Historians and scholars have different opinions about his beliefs, showing that his ideas remain interesting and open to discussion even today.

Reception

Many people praised Omar Khayyam for his great knowledge and skills. Some called him the "King of the Wise." He was highly respected as a mathematician and philosopher. His poems became very popular in the West, especially after a famous translation by Edward FitzGerald in 1859.

Khayyam's work inspired many artists, writers, and thinkers. His poems have been translated into many languages. Statues and monuments were built in his honor in places like Iran, the United States, and Italy. His famous poem "The Moving Finger" has been quoted by important figures and used in books, speeches, and even television shows.