Ulugh Beg 1393-1449

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Ulugh Beg 1393-1449 Reproduction of Ulugh Beg’s visage Background Details Ulugh Beg was born in modern-day Iran to an Uzbek family His nickname, Ulugh Beg, means “great ruler” His real name was Mirza Mohammad Tāregh bin Shāhrokh He was the grandson of a great conqueror and his mother was a noble woman He is known for his capable leadership and contributions to math and astronomy Early Life Ulugh Beg became the ruler of a large amount of land at the young age of 18 where he moved the intellectual center of the territory to Samarkhand (UZ) He also built a madrasa, an Islamic school, based on the teachings of the Koran, the holy book of Muslims In 1428 he built a very large observatory where his study of the stars began Contributions to Astronomy By working in his observatory, Ulugh Beg cataloged 994 stars in his work Zij-i-Sultani in 1437 The catalog of stars was quite important and was used by other astronomers until the 17th century. He determined that a year has 365 days He also determined the tilt of the Earth, which remains the most accurate to this day Soviet Stamp commemorating 550 years of Ulugh Beg’s observatory Contributions to Math Beg is also important for his contributions to trigonometry He wrote accurate trigonometry tables for sine and tangent values correct at least eight decimal places. Death and Legacy Following his death, his contributions to math and science were forgotten His legacy was rehabilitated by a relative who was founder of the Mughal Empire, a territory primarily located in Northern India The moon crater, Ulugh Beigh, was named after Beg by German astronomer Johann Heinrich von Mädler For Further Reading: Ulugh Beg Biography: http://www-history.mcs.st- and.ac.uk/Biographies/Ulugh_Beg.html The Legacy of Ulugh Beg: http://vlib.iue.it/carrie/texts/carrie_books/paksoy- 2/cam6.html.

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General Index
General Index Italic page numbers refer to illustrations. Authors are listed in ical Index. Manuscripts, maps, and charts are usually listed by this index only when their ideas or works are discussed; full title and author; occasionally they are listed under the city and listings of works as cited in this volume are in the Bibliograph- institution in which they are held. CAbbas I, Shah, 47, 63, 65, 67, 409 on South Asian world maps, 393 and Kacba, 191 "Jahangir Embracing Shah (Abbas" Abywn (Abiyun) al-Batriq (Apion the in Kitab-i balJriye, 232-33, 278-79 (painting), 408, 410, 515 Patriarch), 26 in Kitab ~urat ai-arc!, 169 cAbd ai-Karim al-Mi~ri, 54, 65 Accuracy in Nuzhat al-mushtaq, 169 cAbd al-Rabman Efendi, 68 of Arabic measurements of length of on Piri Re)is's world map, 270, 271 cAbd al-Rabman ibn Burhan al-Maw~ili, 54 degree, 181 in Ptolemy's Geography, 169 cAbdolazlz ibn CAbdolgani el-Erzincani, 225 of Bharat Kala Bhavan globe, 397 al-Qazwlni's world maps, 144 Abdur Rahim, map by, 411, 412, 413 of al-BlrunI's calculation of Ghazna's on South Asian world maps, 393, 394, 400 Abraham ben Meir ibn Ezra, 60 longitude, 188 in view of world landmass as bird, 90-91 Abu, Mount, Rajasthan of al-BlrunI's celestial mapping, 37 in Walters Deniz atlast, pl.23 on Jain triptych, 460 of globes in paintings, 409 n.36 Agapius (Mabbub) religious map of, 482-83 of al-Idrisi's sectional maps, 163 Kitab al- ~nwan, 17 Abo al-cAbbas Abmad ibn Abi cAbdallah of Islamic celestial globes, 46-47 Agnese, Battista, 279, 280, 282, 282-83 Mu\:lammad of Kitab-i ba/Jriye, 231, 233 Agnicayana, 308-9, 309 Kitab al-durar wa-al-yawaqft fi 11m of map of north-central India, 421, 422 Agra, 378 n.145, 403, 436, 448, 476-77 al-ra~d wa-al-mawaqft (Book of of maps in Gentil's atlas of Mughal Agrawala, V.
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