A00016 - 'A'isha bint Abu Bakr, Muhammad's Favorite Wife After the Death of Khadija

 

‘A’isha bint Abu Bakr
‘A’isha bint Abu Bakr (‘A’isha) (Aishah) (Ayeshah)  (c.614-678).  Abu Bakr’s daughter and one of Muhammad’s wives.  ‘A’isha was born in Mecca and became the third and favorite wife of the Prophet Muhammad after the death of Muhammad’s first wife, Khadija (c.555-619).  In order to strengthen ties with Abu Bakr, his chief legal adviser, Muhammad married ‘A’isha, Abu Bakr’s daughter, when she was about nine years old, shortly after the hijra.  When ‘A’isha went to live in an apartment in Muhammad’s house, she took her toys and games.  This childhood innocence coupled with her charm and beauty made her Muhammad’s favorite.   Even after subsequent marriages of the Prophet, ‘A’isha remained devoted to Muhammad. 

‘A’isha became the leader in the harem, but her relations with Muhammad were marked by an incident in which she was accused of infidelity.  In 627, while waiting in a camp from which the caravan had moved off, ‘A’isha was found by a young man who escorted her to Medina.  This led to gossip concerning possible infidelity which was countered by a revelation to the Prophet.  ‘A’isha’s innocence was proved by the Qur’an in Sura 24:11-20, but 'Ali ibn Abi Talib was among those who advised Muhammad to send ‘A’isha back to her father to avoid even the hint of impropriety.  This advice earned 'Ali, ‘A’isha’s bitter enmity.

Nevertheless, for her faithfulness, ‘A’isha is known among Muslims as “Mother of the Believers.”  After the death of Muhammad in 632, ‘A’isha, a childless widow of 18, helped her father become the first caliph, or ruler, of the Muslims.

‘A’isha was always loyal to Muhammad and to her father, but seems to have played no major role in politics until the caliphate of ‘Uthman, whom she opposed on moral grounds.  ‘A’isha was not implicated in ‘Uthman’s death, being in Mecca at the time, but she may have been there organizing her own party, for shortly after the murder she was found in Basra with an army of a thousand, including Talha and Zubayr, who were, while claiming to seek vengeance for ‘Uthman, also opposed the caliphate of 'Ali. 

‘A’isha’s forces were defeated by the forces of 'Ali at the Battle of the Camel in December of 656. However, after the defeat, ‘A’isha herself was well treated and lived until July of 678. 

Because of her unique stature in Islam, ‘A’isha is the source of many hadith. 

Aisha (Aisha meaning "she who lives"), was the third wife of Muhammad. In Islamic writings, she is thus often referred to by the title "Mother of the Believers" (in Arabic: umm-al-mu'minīn), per the description of Muhammad's wives as "Mothers of Believers" in the Qur'an (33.6), and later, as the "Mother of Believers", as in Qutb's Ma'alim fi al-Tariq. She is quoted as the source for many hadith, sacred traditions about Muhammad's life, with Muhammad's personal life being the topic of most narrations. She narrated 2210 hadiths out of which 316 hadiths are mentioned in both Sahih al-Bukhari and Sahih Muslim.

Aisha was the daughter of Um Ruman and Abu Bakr of Mecca. Abu Bakr belonged to the Banu Taym sub-clan of the tribe of Quraysh, the tribe to which Muhammad also belonged. Aisha is said to have followed her father in accepting Islam when she was still young. She also joined him in his migration to Abyssinia (Ethiopia) in 615.  A number of Mecca's Muslims emigrated then, seeking refuge from persecution by the Meccans who still followed their pre-Islamic religions.

According to the early Islamic historian Muhammad ibn Jarir al-Tabari, Aisha's father tried to spare her the dangers and discomfort of the journey by solemnizing her marriage to her fiance, Jubayr ibn Mut'im, son of Mut‘im ibn ‘Adi. However, Mut’am refused to honor the long-standing betrothal, as he did not wish his family to be connected to the Muslim outcasts. The emigration to Ethiopia proved temporary and Abu Bakr's family returned to Mecca within a few years. Aisha was then betrothed to Muhammad.
 
Aisha was initially betrothed to Jubayr ibn Mut'im, a Muslim whose father, though pagan, was friendly to the Muslims. When Khawla bint Hakim suggested that Muhammad marry Aisha after the death of Muhammad's first wife (Khadijah bint Khuwaylid), the previous agreement regarding marriage of Aisha with ibn Mut'im was put aside by common consent.  It is suggested that Muhammad hoped to strengthen his ties with Abu Bakr, and that the strengthening of ties commonly served as a basis for marriage in Arabian culture.

According to the traditional sources, Aisha was six or seven years old when betrothed to Muhammad. She stayed in her parents' home until the age of nine, when the marriage was consummated. The marriage was delayed until after the Hijra, or migration to Medina, in 622. Aisha and her older sister Asma bint Abu Bakr only moved to Medina after Muhammad had already migrated there. After this, the wedding was celebrated very simply. The sources do not offer much more information about Aisha's childhood years, but mention that after the wedding, she continued to play with her toys, and Muhammad entered into the spirit of these games.

Most early accounts say that Muhammad and Aisha became sincerely fond of each other. Aisha is usually described as Muhammad's favorite wife, and it was in her company that Muhammad reportedly received the most revelations. Some accounts claim it was the curtain from her tent that Muhammad used as his battle standard.

Aisha was traveling with her husband Muhammad and some of his followers. Aisha claimed that she had left camp in the morning to search for her lost necklace, but when she returned, she found that the company had broken camp and left without her. She waited for half a day, until she was rescued by a man named Safwan ibn Al-Muattal and taken to rejoin the caravan. This led to speculation that she had committed adultery with Safwan. Muhammad's adopted son Zayd ibn Harithah defended Aisha's reputation. Shortly after this, Muhammad announced that he had received a revelation from God confirming Aisha's innocence and directing that charges of adultery be supported by four eyewitnesses. These verses also rebuked Aisha's accusers, whom Muhammad ordered to receive forty lashes.

Ibn Kathir wrote in his biography of Muhammad that Muhammad's wife Umm Salama Hind bint Abi Umayya was given a skin filled with honey, which she shared with her husband. Muhammad was fond of sweets and stayed overlong with Umm Salama Hind bint Abi Umayya.  At least in the opinion of Aisha and her co-wife Hafsa bint Umar. Aisha and Hafsa conspired. Each of them was to tell Muhammad that the honey had given him bad breath. When he heard this from two wives, he believed that it was true and swore that he would eat no more of the honey. Soon afterwards, he reported that he had received a revelation, in which he was told that he could eat anything permitted by God.

Word spread in the small Muslim community that Muhammad's wives were taking advantage of their husband, speaking sharply to him and conspiring against him. Umar, Hafsa's father, scolded his daughter and also spoke to Muhammad of the matter. Muhammad, saddened and upset, separated from his wives for a month. By the end of this time, his wives were humbled; they had admitted their wrongdoing, and harmony was restored.

Ibn Ishaq, in his Sirah Rasul Allah, states that during Muhammad's last illness, he sought Aisha's apartments and died with his head in her lap. It highlighted Muhammad's fondness for Aisha. Aisha never remarried after Muhammad's death. Indeed, a passage in the Qur'an (Sura 33:53) forbade any Muslim to marry a widow of Muhammad.

After Muhammad's death in 632, Aisha's father, Abu Bakr, became the first caliph, or leader of the Muslims. This matter of succession to Muhammad is extremely controversial to the Shi'a. The Shi'a believe that 'Ali had been chosen to lead by Muhammad, but the Sunni maintain that the Muslim community chose Abu Bakr, and did so in accordance with Muhammad's wishes.

Abu Bakr's reign was short, and in 634 he was succeeded by Umar, as caliph. Umar reigned for ten years, and was then followed by Uthman Ibn Affan in 644 AD. Both of these men had been among Muhammad's earliest followers, were linked to him by clanship and marriage, and had taken prominent parts in various military campaigns. Aisha, in the meantime, lived in Medina and made several pilgrimages to Mecca.

In 656, Aisha took part in provoking the people to kill Uthman. The rebels then asked Ali to be the new caliph. Many reports absolve Ali of complicity in the murder. Ali is reported to have refused the caliphate. He agreed to rule only after his followers persisted.

Aisha raised an army which confronted Ali's army outside the city of Basra.  It was during this engagement that Muslim slaughtered Muslim for the first time.  A battle ensued and Aisha's forces were defeated. Aisha was directing her forces from a howdah on the back of a camel.  Accordingly, this 656 battle is called the Battle of the Camel.

Ali captured Aisha but declined to harm her. He sent her back to Medina under military escort headed by Muhammad ibn Abi Bakr (a brother of Aisha), who was one of the commanders in Ali's army

Historians see Aisha as a learned woman, who tirelessly recounted stories from the life of Muhammad and explained Muslim history and traditions. She is considered to be one of the foremost scholars of Islam's early age with some historians accrediting up to one-quarter of the Islamic Sharia (Islamic religious law), based on the collection of hadiths, to have stemmed from her narrations. Aisha became the most prominent of Muhammad’s wives and is revered as a role model by millions of women.

After Khadijah al-Kubra (the Great) and Fatimah az-Zahra (the Resplendent), Aishah as-Siddiqah (the one who affirms the Truth) is regarded as the best woman in Islam by Sunni Muslims. She often regretted her involvement in war but lived long enough to regain status and position. She died peacefully in the year 678 in the month of Ramadan. As she instructed, she was buried in the Jannat al-Baqi -- in the City of Light -- beside other companions of Muhammad.

The Sunnis' view of 'A'isha is a positive one. Many believe that she was Muhammad's favorite wife and the best woman of her time. They consider her (amongst other wives) to be Umm al-Mu'minin and among the Ahl al-Bayt.

However, the Shi'a view of 'A'isha is generally a negative one. This is primarily due to what they see as her contempt for the Ahl al-Bayt (Muhammad's family) and her attempts to stir up the fitnah of the time. Her participation in the Battle of the Camel is widely considered her most significant sign of such contempt. They also do not believe that she conducted herself in an appropriate manner in her role as Muhammad's wife .

‘A’isha see ‘A’isha bint Abu Bakr
Aishah see ‘A’isha bint Abu Bakr
Ayeshah see ‘A’isha bint Abu Bakr
“Mother of the Believers”   see ‘A’isha bint Abu Bakr
"She Who Lives" see ‘A’isha bint Abu Bakr

A00015 - Fariduddin Masud, Punjabi Sunni Muslim Mystic

Masud, Fariduddin

Farīd al-Dīn Masʿūd Ganj-i-Shakar (b, c. April 4, 1179, Kothewal, Multan, Punjab, Ghurid Sultanate (present-day Pakistan) – d. May 7, 1266 [5 Muharram, 665 AH], Pakpattan, Punjab, Delhi Sultanate (present-day Pakistan)) was a 12th-century Punjabi Sunni Muslim preacher and mystic.who went on to become "one of the most revered and distinguished ... Muslim mystics" of the medieval period. He is known reverentially as Bābā Farīd or Shaikh Farīd by Muslims, Sikhs and Hindus of the Punjab Region, or simply as Farīduddīn Ganjshakar.

Fariduddin Masud was a great Sufi master who was born in 1179 at a village called Kothewal, 10 km from Multan in the Punjab region of what is now Pakistan, to Jamāl-ud-dīn Suleimān and Maryam Bībī (Qarsum Bībī), daughter of Sheikh Wajīh-ud-dīn Khojendī. He was a Sunni Muslim and was one of the founding fathers of the Chishti Sufi order.  Baba Farid received his early education at Multan, which had become a center for Muslim education. It was there that he met his teacher Qutbuddin Bakhtiar Kaki, a noted Sufi saint, who was passing through Multan on his way from Baghdad to Delhi. Upon completing his education, Farīd left for Sistan and Kandahar and went to Makkah (Mecca) for the Hajj pilgrimage with his parents at the age of 16.

Once his education was over, he moved to Delhi, where he learned the Islamic doctrine from his master, Qutbuddin Bakhtiar Kaki. He later moved to Hansi, Haryana.  When Quṭbuddīn Bakhtiyār Kākī died in 1235, Farīd left Hansi and became his spiritual successor.  He settled in Ajodhan (the present Pakpattan, Pakistan) instead of Delhi. On his way to Ajodhan, while passing through Faridkot, he met the 20-year-old Nizamuddin Auliya, who went on to become his disciple, and later his successor Sufi khalīfah. His nephew and disciple and successor Alauddin Sabir Kaliyari was amongst the greatest Sufi saints and from him the Sabiriya branch under Chisty order started.

Baba Farid had three wives and eight children (five sons and three daughters). One of his wives, Hazabara, was the daughter of Sulṭān Nasīruddīn Maḥmūd.

The great Arab traveller Ibn Battuta once visited this Sufi saint. Ibn Battuta reported that Fariduddin Ganjshakar was the spiritual guide of the Sultan of Delhi Sultanate, and that the Sultan had given him the village of Ajodhan. He also met Baba Farid's two sons.

Baba Farid's descendants, also known as Fareedi, Fareedies or Faridy, mostly carry the name Fārūqī, and can be found in Pakistan, India and the diaspora. Fariduddin Ganjshakar's descendants include the Sufi saint Salim Chishti, whose daughter was the Emperor Jehangir's foster mother. Their descendants settled in Sheikhupur, Badaun and the remains of a fort they built can still be found. 

Fariduddin Ganjshakar's shrine darbār is located in Pakpattan, Punjab, Pakistan.

One of Farīd's most important contributions to Punjabi literature was his development of the language for literary purposes.  Whereas Sanskrit, Arabic, Turkish and Persian had historically been considered the languages of the learned and the elite, and used in monastic centers, Punjabi was generally considered a less refined folk language. Although earlier poets had written in a primitive Punjabi, before Farīd there was little in Punjabi literature apart from traditional and anonymous ballads.  By using Punjabi as the language of poetry, Farīd laid the basis for a vernacular Punjabi literature that would be developed later.

The city of Faridkot bears his name. According to legend, Farīd stopped by the city, then named Mokhalpūr, and sat in seclusion for forty days near the fort of King Mokhal. The king was said to be so impressed by his presence that he named the city after Baba Farid, which today is known as Tilla Baba Farid. The festival Bābā Sheikh Farād Āgman Purb Melā' is celebrated in September each year for 3 days, commemorating Baba Farid's arrival in the city.  Ajodhan was also renamed as Farīd's 'Pāk Pattan', meaning 'Holy Ferry'; today it is generally called Pāk Pattan Sharīf.

Faridia Islamic University, a religious madrassa in Sahiwal, Punjab, Pakistan, is named after Baba Farid, and in July 1998, the Punjab Government in India established the Baba Farid University of Health Sciences at Faridkot, the city which itself was named after him.

There are various explanations of why Baba Farid was given the title Shakar Ganj^[ ('Treasure of Sugar'). One legend says his mother used to encourage the young Farīd to pray by placing sugar under his prayer mat. Once, when she forgot, the young Farīd found the sugar anyway, an experience that gave him more spiritual fervor and led to his being given the name.

A00014 - Al-Dimashqi, Medieval Arab Geographer

Dimashqi 

Shams al-Din al-Ansari al-Dimashqi or simply al-Dimashqi (Arabic: شمس الدين الأنصاري الدمشقي‎) (1256–1327) was a medieval Arab geographer, completing his main work in 1300. Born in Damascus — as his name "Dimashqi" implies—he mostly wrote of his native land, the Greater Syria (Bilad ash-Sham), upon the complete withdrawal of the Crusaders. He became a contemporary of the Mamluk sultan Baibars, the general who led the Muslims in war against the Crusaders. His work is of value in connection with the Crusader Chronicles. He died while in Safad, in 1327.

Al-Dimashqi (1325) gives very detailed accounts of each island in the Malay archipelago, its population, flora, fauna and customs. He mentions "the country of Champa ... is inhabited by Muslims and idolaters. The Islam came there during the time of Caliph Uthman ... and Ali, many Muslims who were expelled by the Umayyads and by Al-Hajjaj, fled there, and since then a majority of the Cham have embraced Islam."

Of their rivals the Khmer, Al-Dimashqi (1325) mentions they inhabit the island of Komor (Khmer), also called Malay Island, a land of many towns and cities, rich-dense forests with huge, tall trees, and white elephants; they supplemented their income from the trade routes not only by exporting ivory and aloe, but also by engaging in piracy and raiding on Muslim and Chinese shipping.

A00013 - Ibn Badis, Author of Staff of the Scribes

Al- Muʻizz ibn Bādīs (Arabic:  المعز بن باديس‎); 1008–1062) was the fourth ruler of the Zirids in Ifriqiya, reigning from 1016 to 1062.

Al-Muizz ascended the throne as a minor following the death of his father Badis ibn Mansur,  with his aunt acting as regent. In 1016 there was a bloody revolt in Ifriqiya in which the Fatimid residence Al-Mansuriya was completely destroyed and 20,000 Shiites were massacred. The unrest forced a ceasefire in the conflict with the Hammadids of Algeria, and their independence was finally recognized in 1018.

Al-Muizz took over the government in 1022 following the overthrow of his aunt. The relationship with the Fatimids was strained, when in 1027 they supported a revolt of the Zanatas in Tripolitania which resulted in permanent loss of control of the region. His son Abdallah shortly ruled Sicily in 1038-1040, after intervening with a Zirid army in the civil war that broke out in the island.

The political turmoil notwithstanding, the general economic well-being initially made possible an extensive building program. However, the kingdom found itself in economic crisis in the 1040s, reflected in currency devaluation, epidemic and famine. This may have been related to the high level of tribute which the Zirids were compelled to pay annually to the Fatimids (one million gold dinars a year).

When al-Muizz (under the influence of Sunni jurists in Kairouan, growing Sunni public pressure in his realm and a violent backlash against the Shi'ite minority) recognized the Abbasids in Baghdad as rightful Caliphs in 1045 and adopted Sunni orthodoxy, the break with the Fatimids was complete. He even denounced the Fatimids and their followers as heretics in newly minted coinage.

The Fatimids then deported the Bedouin tribes of the Banu Hilal and the Banu Sulaym fromEgypt to Ifriqiya. The invasion of the Bedouin (1051–1052) led to great hardship after the defeat at Jabal Haydaran, severely impacting agriculture in Ifriqiya. The conquest of Kairouan in 1057 resulted in further anarchy. The Zirids lost control over the hinterland and were only able to retain the coastal areas, the capital being moved to Mahdia. With the growth of Bedouin Emirates and the continuing insecurity inland, the economy of Ifriqiya looked increasingly towards the Mediterranean, with the result the coastal cities grew in importance through maritime trade and piracy.

Al-Muizz was succeeded by his son Tamim ibn Muizz. 

Al-Muizz ibn Badis is usually thought to be the author of the famous Kitab `umdat al-kuttab wa `uddat dhawi al-albab (Staff of the Scribes). It is divided in twelve chapters.  Al-Muizz wrote on (amongst others) on the excellence of the pen, on the preparation of types of inks, the preparation of colored inks, metallic inks (including ones prepared from silver filings and alcohol), the coloring of dyes and mixtures, secret writing, the making of paper and the Arabic gum and glue. 

A00012 - Ibn al-Wafid, Author of The Book of Simple Drugs

Ibn al-Wafid

Ibn al-Wafid (Ali Ibn al-Husain Ibn al-Wafid) (997-c.1074), known in Latin Europe as Abenguefit, was a pharmacologist and physician from Toledo. He was the vizier of  Al-Mamun of Toledo. His main work is Kitāb al-adwiya al-mufrada (The Book of Simple Drugs) (كتاب الأدوية المفردة, translated into Latin as De medicamentis simplicibus).

Ibn al-Wafid was mainly a pharmacist in Toledo, and he used the techniques and methods available in alchemy to extract at least 520 different kinds of medicines from various plants and herbs.

Ibn al-Wafid's student Ali Ibn al-Lukuh was the author of ʿUmdat al-Ṭabīb fī Maʿrifat al-Nabāt li kulli Labīb, a famous botanical dictionary.

Kitāb al-adwiya al-mufrada (The Book of Simple Drugs) ran to five hundred pages, taking twenty-five years to compile.  The Latin translation, De medicamentis simplicibus is only a fragment of all his work.  

As well as investigatin the action of drugs, sleep and bathing, Ibn al-Wafid also wrote on farming, because agriculture, plant cultivation, botany, chemistry and medicine were closely linked.

A00011 - Ibn al-Thahabi

Abu Mohammed Abdellah Ibn Mohammed Al-Azdi (Arabic: ابو محمد عبدالله بن محمد الأزدي‎) (ca. ? - 1033 CE), known also as Ibn Al-Thahabi, was an Arab physician, famous for writing the first known alphabetical encyclopedia of medicine.

He was born in Suhar, Oman.  He moved then into Basra,  then to Persia where he studied under Al-Biruni and Ibn Sina.  Later he migrated to Jerusalem and finally settled in Valencia, in Al-Andalus (Islamic Spain).

He is famous for his book Kitab al-Ma'a (The Book of Water), which is a medical encyclopedia that lists the names of diseases, its medicine and a physiological process or a treatment. It is the first known alphabetical classification of medical terms. In this encyclopedia, Ibn Al-Thahabi not only lists the names but adds numerous original ideas about the function of the human organs. It also contains a course for the treatment psychological symptoms. The main thesis of his medication is that cure must start from controlled food and exercise and if it persists then use specific individual medicines.  If it still persists, then use medical compounds. If the disease continued, surgery was performed.

A00010 - Ibn al-Shatir, The "Father" of Copernicus' Theory

Ibn al-Shatir

Ala Al-Din Abu'l-Hasan Ali Ibn Ibrahim Ibn al-Shatir (1304 – 1375) (Arabic: ابن الشاطر‎) was an Arab Muslim astronomer, mathematician, engineer and inventor who worked as muwaqqit (موقت, religious timekeeper) at the Umayyad Mosque in Damascus, Syria.

Ibn al-Shatir conducted extensive observations which led to some of his theoretical contributions, designed and constructed new instruments, and made advanced contributions to Islamic astronomy in the field of planetary theory.

His most important astronomical treatise was the Kitāb Nihāyat al-Suʾāl fī Taṣḥīḥ al-ʾUṣūl (كتاب نهاية السؤال في تصحيح الأصول - The Final Quest Concerning the Rectification of Principles), in which he drastically reformed the Ptolemaic models of the Sun, Moon, and planets. While previous Maragha school models were just as accurate as the Ptolemaic model, Ibn al-Shatir's geometrical model was the first that was actually superior to the Ptolemaic model in terms of its better agreement with both contemporary theory and empirical observations. 

Experimentally Ibn al-Shatir employed careful eclipse observations to measure the apparent size of the Sun and Moon and found that they disagreed with Ptolemaic expectations. His work on his experiments and observations (e.g. Ta'liq al-arsad, or Accounting for Observations) has not survived, but there are references to it in his Final Quest Concerning the Rectification of Principles.

Theoretically, Ibn al-Shatir objected to Aristotle's ether, in its eternal uniformity, and argued that if one grants that the heavens must allow for a variation in composition then there's no reason to reject epicycles, while agreeing that equants and eccentrics, which violated Aristotelian principles of uniform circular motion and gravity, were impossible. He then built a model that by adding new epicycles utilizing the Tusi-couple eliminated entirely the epicycle in the solar model, the eccentrics and equants in the planetary models, and the eccentric, epicycles and equant in the lunar model. The resulting model was one in which the Earth was at the exact center of the universe around which all heavenly bodies moved in uniform circular motions, remained as accurate as Ptolemy in predicting the paths of heavenly bodies, and improved on Ptolemy by accurately predicting the apparent size and distance of the Sun and Moon.

By creating the first model of the cosmos in which physical theory, mathematical model, and empirical observation were in agreement, Ibn al-Shatir marked a turning point in astronomy which may be considered a "Scientific Revolution before the Renaissance".

Although his system was firmly geocentric — he had eliminated the Ptolemaic equant and eccentrics  — the mathematical details of his system encompassed those in Nicolaus Copernicus' De revolutionibus, which had retained the Ptolemaic eccentric.  Copernicus' lunar model was identical to the lunar model of al-Shatir.  It is noted that in Copernicus' Commentariolus that his model of Mercury is mistaken, and that since it is Ibn al-Shatir's model, this is further evidence, and perhaps the best evidence, that Copernicus was in fact copying without full understanding from some other source. All this suggests that Ibn al-Shatir's model may have influenced, if indirectly, Copernicus while constructing the latter's heliocentric model. How Copernicus would have come across al-Shatir's work, exactly, remains an open question, but there are some number of possible routes for first or secondhand transmission.

Ibn al-Shatir constructed a magnificent sundial for the minaret of the Umayyad Mosque in Damascus which gave both seasonal and equinoctial hours. The fragments of this sundial in a Damascus museum make this the oldest polar-axis sundial still in existence.

Ibn al-Shatir made a timekeeping device incorporating both a universal sundial and a magnetic compass. 

The compendium, a multi-purpose astronomical instrument, was first constructed by Ibn al-Shatir. His compendium featured an alhidade and polar sundial among other things. These compendia later became popular in Renaissance Europe.

Ibn al-Shatir described another astronomical instrument which he called the "universal instrument" in his Rays of light on operations with the universal instrument (al-ʾashiʿʿa al-lāmiʿa fī al-ʿamal bi-l-āla al-jāmiʿa). A commentary on this work entitled Book of Ripe Fruits from Clusters of Universal Instrument (Kitāb al-thimār al-yāni'a ʿan qutāf al-āla al-jāmiʿa) was later written by the Ottoman astronomer and engineer Taqi al-Din, who employed the instrument at the Istanbul observatory of Taqi al-Din from 1577-1580.

In the case of lunar motion, Ibn al-Shatir corrected Ptolemy, whose imagined Moon approached far closer to the Earth than did the actual Moon.

Many believe that astronomy died with the Greeks, and was brought back to life again by Copernicus, the 15th century Polish astronomer who is famous for introducing the Sun-centered (heliocentric) theory of the solar system, which marked the beginning of modern astronomy.

However, many historians now think it is not a coincidence that his models of planetary theory are mathematically identical to those prepared by Ibn al-Shatir over a century before him.  It is known that Copernicus relied heavily on the comprehensive astronomical treatise by al-Battani, which included star catalogues and planetary tables.

The mathematical devices discovered by Muslims before Copernicus, referred to in modern terms as linkages of constant length vectors rotating at constant angular velocities, are exactly the same as those used by Copernicus.  The only, but important, differences between the two was that the Muslims' Earth was fixed in space, whereas Copernicus had it orbiting around the Sun.  Copernicus also used instruments which were particular to astronomy in the East, like the parallactic ruler, which had previously only been used in Samarkand and Maragha Observatories.