De Gradibus

9th-century book by Al-Kindi


Author	Al-Kindi
Original title	رسالة في قدر منفعة صناعة الطب

De Gradibus was an Arabic book published by the Arab physician Al-Kindi (c. 801–873 CE). De gradibus is the Latinized name of the book. An alternative name for the book was Quia Primos.^[1]

In De Gradibus, Al-Kindi attempts to apply mathematics to pharmacology by quantifying the strength of drugs. According to Prioreschi, this was the first attempt at serious quantification in medicine.^[2] He also developed a system, based on the phases of the Moon, that would allow a doctor to determine in advance the most critical days of a patient's illness.^[3] During the Arabic-Latin translation movement of the 12th century, De Gradibus was translated into Latin by Gerard of Cremona.^[1] Al-Kindi's mathematical reasoning was complex and hard to follow; Roger Bacon commented that his method of computing the strength of a drug was extremely difficult to use.^[2]

References

^ ^a ^b p. 19, "Al-Kindi, A Precursor Of The Scientific Revolution", Plinio Prioreschi, Journal of the International Society for the History of Islamic Medicine 1, #2 (October 2002), pp. 17–19.
^ ^a ^b p. 18, Prioreschi 2002.
^ (incomplete citation) Klein-Franke, p. 172

Islamic medicine

Physicians

7th century	Abu Hafsa Yazid Al-Harith ibn Kalada Bukhtishu Ibn Abi Ramtha al-Tamimi Ibn Uthal Masarjawaih Nafi ibn al-Harith Rufaida Al-Aslamia Zaynab al-Awadiya
8th century	Bukhtishu Ja'ar al-Sadiq
9th century	Al-Kindi Al-Ruhawi Albubather Ali al-Ridha Ali ibn Sahl Rabban al-Tabari Bukhtishu Hunayn ibn Ishaq Ishaq ibn Hunayn Jabir ibn Hayyan Jabril ibn Bukhtishu Masawaiyh Salmawaih ibn Bunan Shapur ibn Sahl Yahya ibn Sarafyun Yuhanna ibn Bukhtishu Yusuf al-Khuri
10th century	'Ali ibn al-'Abbas al-Majusi Aayon Ibn Aayon Abu Bakr Rabee Ibn Ahmad Al-Akhawyni Bokhari Abu Bakr al-Razi Abu Sahl 'Isa ibn Yahya al-Masihi Abu Zayd al-Balkhi Abu al-Hasan al-Tabari Abu al-Qasim Muqane'i Abu al-Qasim al-Zahrawi Abu ul-Ala Shirazi Al-Kaŝkarī Al-Natili Al-Tamimi, the physician Eutychius of Alexandria Ibn Abi al-Ashʿath Ibn Juljul Ibn al-Jazzar Ibrahim ibn Baks Isaac Israeli ben Solomon Mohammed ibn Abdun al-Jabali Muvaffak Qumri Qusta ibn Luqa
11th century	Abdollah ibn Bukhtishu Abu 'Ubayd al-Juzjani Abu al-Hakam al-Kirmani Al-Biruni Ali ibn Isa al-Kahhal Ali ibn Ridwan Ali ibn Yusuf al-Ilaqi Ammar ibn Ali al-Mawsili Avicenna Badi' al-Asturlabi Ibn Abi Sadiq Ibn Al-Thahabi Ibn Butlan Ibn Hindu Ibn Jazla Ibn al-Haytham Ibn al-Kattani Ibn al-Wafid Jonah ibn Janah Masawaih
12th century	Abu Jafar ibn Harun al-Turjali Abu al-Bayan ibn al-Mudawwar Abu al-Majd ibn Abi al-Hakam Abu'l-Barakāt al-Baghdādī Ahmad ibn Farrokh Al-Samawal al-Maghribi Avempace Averroes Ibn Habal Ibn Jumay‘ Ibn Tufayl Ibn Zuhr Ibn al-Tilmīdh Moshe ben Maimon Muhammad ibn Aslam Al-Ghafiqi Serapion the Younger Ya'qub ibn Ishaq al-Israili Zayn al-Din Gorgani
13th century	Abd al-Latif al-Baghdadi Abraham ben Moses ben Maimon Al-Dakhwar Al-Shahrazuri Amin al-Din Rashid al-Din Vatvat As-Suwaydi Da'ud Abu al-Fadl Hussam al-Din al-Jarrahi Ibn Abi Usaibia Ibn Tumlus Ibn al-Baitar Ibn al-Nafis Ibn al-Quff Ibn al‐Raqqam Joseph ben Judah of Ceuta Najib ad-Din Samarqandi Qutb al-Din al-Shirazi Rashidun al-Suri Sa'ad al-Dawla Zakariya al-Qazwini
14th century	Al-Nagawri Aqsara'i Ibn Shuayb Ibn al-Akfani Ibn al-Khatib Jaghmini Mansur ibn Ilyas Mas‘ud ibn Muhammad Sijzi Muhammad ibn Mahmud Amuli Najm al-Din Mahmud ibn Ilyas al-Shirazi Nakhshabi Rashid-al-Din Hamadani Sadid al-Din al-Kazaruni Yusuf ibn Ismail al-Kutubi Zayn-e-Attar
15th century	Abu Sa'id al-Afif Burhan-ud-din Kermani Husayni Isfahani Muhammad Ali Astarabadi Muhammad ibn Yusuf al-Harawi Nurbakhshi Shaykh Muhammad ibn Thaleb Şerafeddin Kadir
16th century	Rostam Gorgani ʽImad Shirazi Abul Qasim ibn Mohammed al-Ghassani Dawud al-Antaki Hakim-e-Gilani Sultan Ali Khorasani Taqi al-Din Muhammad ibn Ma'ruf
17th century	Qiwam al-Din Muhammad al-Hasani Abd El Razzaq Al-Jazaïri Qurayshi al-Shirazi Tunakabuni Maqsud-Ali Tabrizi
18th century	Al-Khurasani al-Shirazi

Concepts

Works

Al-Risalah al-Dhahabiah
The Canon of Medicine
Tacuinum Sanitatis
Anatomy Charts of the Arabs
The Book of Healing
Book of the Ten Treatises of the Eye
De Gradibus
Al-Tasrif
Zakhireye Khwarazmshahi
Adab al-Tabib
Kamel al-Sanaat al-Tibbyya
Al-Hawi
Commentary on Anatomy in Avicenna's Canon
Lives of the Physicians

Centers

Influences

Influenced

Mathematics in the medieval Islamic world

Mathematicians

9th century	'Abd al-Hamīd ibn Turk Sanad ibn Ali al-Jawharī Al-Ḥajjāj ibn Yūsuf Al-Kindi Qusta ibn Luqa Al-Mahani al-Dinawari Banū Mūsā brothers Hunayn ibn Ishaq Al-Khwarizmi Yusuf al-Khuri Ishaq ibn Hunayn Na'im ibn Musa Thābit ibn Qurra al-Marwazi Abu Said Gorgani
10th century	Abu al-Wafa al-Khazin Al-Qabisi Abu Kamil Ahmad ibn Yusuf Aṣ-Ṣaidanānī Sinān ibn al-Fatḥ al-Khojandi Al-Nayrizi Al-Saghani Brethren of Purity Ibn Sahl Ibn Yunus al-Uqlidisi Al-Battani Sinan ibn Thabit Ibrahim ibn Sinan Al-Isfahani Nazif ibn Yumn al-Qūhī Abu al-Jud Al-Sijzi Al-Karaji al-Majriti al-Jabali
11th century	Abu Nasr Mansur Alhazen Kushyar Gilani Al-Biruni Ibn al-Samh Abu Mansur al-Baghdadi Avicenna al-Jayyānī al-Nasawī al-Zarqālī ibn Hud Al-Isfizari Omar Khayyam Muhammad al-Baghdadi
12th century	Jabir ibn Aflah Al-Kharaqī Al-Khazini Al-Samawal al-Maghribi al-Hassar Sharaf al-Din al-Tusi Ibn al-Yasamin
13th century	Ibn al‐Ha'im al‐Ishbili Ahmad al-Buni Ibn Munim Alam al-Din al-Hanafi Ibn Adlan al-Urdi Nasir al-Din al-Tusi al-Abhari Muhyi al-Din al-Maghribi al-Hasan al-Marrakushi Qutb al-Din al-Shirazi Shams al-Din al-Samarqandi Ibn al-Banna' Kamāl al-Dīn al-Fārisī
14th century	Nizam al-Din al-Nisapuri Ibn al-Shatir Ibn al-Durayhim Al-Khalili al-Umawi
15th century	Ibn al-Majdi al-Rūmī al-Kāshī Ulugh Beg Ali Qushji al-Wafa'i al-Qalaṣādī Sibt al-Maridini Ibn Ghazi al-Miknasi
16th century	Al-Birjandi Muhammad Baqir Yazdi Taqi ad-Din Ibn Hamza al-Maghribi Ahmad Ibn al-Qadi