Little is known about the life of Ghija ud-din Abu'l Fath Umar Ibn Ibrahim Ul-Khayyami, as he is called in the oldest Arabic sources. He was considered a great mathematician and astronomer, who became famous for scientific papers in Arabic, but above all for the creation of a calendar that in some respects is even superior to the Gregorian. This was officially introduced in 1079, replacing the Arab-Islamic lunar year with the Persian solar year. In Europe it became known as Omar Khayyam due to its approximately 750 four-liner (Rubaiyat). He was born between 1021 and 1048 in Nischâpur, then the largest city in ancient Persia ( Iran ). He spent most of his life here and died and was buried there between 1122 and 1131.
His partly pessimistic drinking songs were directed against religious fanaticism and also heretical against Islamic alcohol ban : "I don't know whether the person who shaped my being prepared me a home in heaven or in terrible hell. But a little food, a woman adored and a little wine on a green heap - that is wealth - keep the heaven for you that you trust so much ” . Another example: “Every day I make a new effort to stop drinking and regret it; but sweet Lenz has appeared since the full scent of roses - I regret my regrets ” . Omar Khayyam also wrote about the legendary king Jamshid, at whose court legend has it that wine was invented. Another famous Persian poet is Hafiz (1324-1390). See also under the keyword Quotes where verses from both poets are included.