Omar Khayyam
Omar Khayyam( 18 May 1048 – 4 December 1131) was a Persian mathematician, astronomer, philosopher, and poet.
He was born in Nishapur, in northeastern Iran, and spent most of his life near the court of the Karakhanid and Seljuq rulers in the period which witnessed the First Crusade.
As a mathematician, he is most notable for his work on the classification and solution of cubic equations, where he provided geometric solutions by the intersection of conics.
Khayyam also contributed to the understanding of the parallel axiom.
As an astronomer, he designed the Jalali calendar, a solar calendar with a very precise 33- year intercalation cycle.
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- reading world in a translation by Edward FitzGerald(" Rubaiyat of Omar Khayyam", 1859), which enjoyed great success in the Orientalism of the fin de siècle.
Robert Parfew
Robert Parfew( or Robert Warton)( died 22 September 1557) was an English Benedictine abbot, at the time of the dissolution of the monasteries, and bishop successively of St Asaph and Hereford.
Robert of Braybrooke
Robert of Braybrooke or Robert le May( 1168 –1210) was a medieval landowner, justice and sheriff.
Robert Lettis Hooper
Robert Lettis Hooper or Robert Lettice Hooper( died 1738/ 39) was a chief justice of the New Jersey Supreme Court.
Robert McGowan Coventry
Robert McGowan Coventry or Robert McGown Coventry( 1855–1914) was a Scottish painter born in Glasgow.
Malaclypse the Younger
Gregory Hill( 21 May 1941 – 20 July 2000), better known by the pen name Malaclypse the Younger, was one of the two writers of the" Principia Discordia", along with Kerry Wendell Thornley( a.k.a. Lord Omar Khayyam Ravenhurst).
He was also adapted as a character in" The Illuminatus! Trilogy".
During the early years of circulation of the" Principia Discordia", rumors claimed that the author of the book was Richard Nixon, Timothy Leary, or Robert Anton Wilson; or that the book and Malaclypse the Younger were both fictional inventions of Robert Anton Wilson, as with Abdul Alhazred's" Necronomicon".
Ruprecht Haller von Hallerstein
Ruprecht Or Robert Haller von Hallerstein,( 1533- 1560) was a Bavarian noble lord.
Maximus of Tyre
Maximus of Tyre( fl. late 2nd century AD), also known as Cassius Maximus Tyrius, was a Greek rhetorician and philosopher who lived in the time of the Antonines and Commodus, and who belongs to the trend of the Second Sophistic.
His writings contain many allusions to the history of Greece, while there is little reference to Rome; hence it is inferred that he lived longer in Greece, perhaps as a professor at Athens.
Although nominally a Platonist, he is really an Eclectic and one of the precursors of Neoplatonism.
Robert Passelewe
Robert Passelewe( or Robert Papelew; died 1252) was a medieval Bishop of Chichester elect as well as being a royal clerk and Archdeacon of Lewes.
Robert C. Muehrcke
Robert C. Muehrcke( 4 August 1921, Cincinnati, Ohio – 9 November 2003) was an American physician, known for his description of the clinical sign called Muehrcke's nails.
At the entry of the USA into WW II, he joined the 132nd Infantry Regiment and served with the regiment in Guadalcanal.
In 1945 he was in Okinawa with the 96th Infantry Division.
( In 1982 he published a book," Orchids in the Mud", of personal accounts concerning these wartime campaigns.)
He graduated from the University of Illinois College of Medicine in 1952.
In Chicago he was an associate attending physician at Research and Educational Hospital and Cook County Hospital and an instructor in medicine at the University of Illinois College of Medicine.
In the later years of his career he was in the Department of Medicine of West Suburban Hospital, Oak Park.
He retired in 1992.
He married in 1972.
Upon his death, he was survived by his wife, seven sons, and nine grandchildren.

Question: Who lived longer, Robert C. Muehrcke or Omar Khayyam?
Answer: Omar Khayyam