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Al-Jahiz

Al-Jahiz is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Al-Jahiz rather than just read about it. In short: Abu Uthman Amr ibn Bahr al-Kinani al-Basri (Arabic: أبو عثمان عمرو بن بحر الكناني البصري, romanized: Abū ʿUthman ʿAmr ibn Baḥr al-Kinānī al-Baṣrī; c. 776–868/869), commonly known as al-Jahiz (Arabic: الجاحظ, romanized: al-Jāḥiẓ, lit. 'the bug eyed', [al.dʒaː.ħɪðˤ]), was an Arab Muslim theologian, intellectual, and litterateur known for his individual Arabic prose. A polymath who lived during the Abbasid Caliphate, h…

Al-Jahiz — main illustration
Al-Jahiz — illustration

Key takeaways

  • Al-Jahiz belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Al-Jahiz to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Al-Jahiz from memory before moving on to harder problems.

Reference excerpt

Abu Uthman Amr ibn Bahr al-Kinani al-Basri (Arabic: أبو عثمان عمرو بن بحر الكناني البصري, romanized: Abū ʿUthman ʿAmr ibn Baḥr al-Kinānī al-Baṣrī; c. 776–868/869), commonly known as al-Jahiz (Arabic: الجاحظ, romanized: al-Jāḥiẓ, lit. 'the bug eyed', [al.dʒaː.ħɪðˤ]), was an Arab Muslim theologian, intellectual, and litterateur known for his individual Arabic prose. A polymath who lived during the Abbasid Caliphate, he was the author of works of literature (including theory and criticism), theology, zoology, philosophy, grammar, dialectics, rhetoric, philology, linguistics, and politico-religious polemics. His extensive zoological work has been credited with describing principles related to natural selection, ethology, and the functions of an ecosystem. From about 815 CE, he rose to become one of the literary figures around the Abbasid caliph al-Ma'mun (r. 813–833 CE). Although he held no official posts, he received funding from several Abbasid prime ministers, while also working as a scribe and a teacher. Al-Jahiz was part of the rationalist Mu'tazilite school of theology supported by al-Ma'mun and his two successors, Al-Mu'tasim (r. 833-842 CE) and Al-Wathiq (r. 842-847 CE). Ibn al-Nadim lists nearly 140 titles attributed to al-Jahiz, of which 75 are extant. The best known are Kitāb al-Ḥayawān (The Book of Animals), a seven-part compendium on an array of subjects with animals as their point of departure; Kitāb al-Bayān wa-l-tabyīn (The Book of Eloquence and Exposition), a wide-ranging work on human communication; and Kitāb al-Bukhalāʾ (The Book of Misers), a collection of anecdotes on stinginess. Known for his significant engagement with religious and scholarly texts, Al-Jahiz was one of the earliest Muslims to make use of biblical material in Arabic translation. Tradition claims that he was smothered to death when a vast number of books fell over him.

Life The actual name of al-Jahiz was Abū ʿUthman ʿAmr ibn Bahr ibn Maḥbūb. His grandfather, Maḥbūb, was a protégé or mawali of ‘Amr ibn Qal‘ al-Kinānī, who was from Arab Banu Kinanah tribe. Jahiz's forebears were likely of Sub-Saharan-African descent; his grandfather was 'black', and he himself retained some of the melanated complexion of his forefathers. Not much is known about al-Jāḥiẓ's early life, but his family was very poor. Born in Basra early in 160/February 776, he asserted in a book he wrote that he was a member of the Banu Kinanah. However, the grandfather of al-Jāḥiẓ was reportedly a Black jammāl (cameleer) – or ḥammāl (porter); the manuscripts differ – of ‘Amr ibn Qal‘ named Maḥbūb, nicknamed Fazārah, or Fazārah was his maternal grandfather, and Maḥbūb his paternal. The names may however have been confused. His nephew also reported that al-Jāḥiẓ's grandfather was a black cameleer. In the early Islamic Arabia, the designation of Black (Arabic: السودان "as-swadan") was used to describe people like Zuṭṭ and Zanj, and based on this, several scholars have stated that al-Jahiz descended from one of these black communities, with some even suggesting that he was possibly of African descent. He sold fish along one of the canals in Basra to help his family. Financial difficulties, however, did not stop al-Jāḥiẓ from continuously seeking knowledge. He used to gather with a group of other youths at Basra's main mosque, where they would discuss different scientific subjects. During the cultural and intellectual revolution under the Abbasid Caliphate books became readily available, and learning accessible. Al-Jāḥiẓ studied philology, lexicography and poetry from among the most learned scholars at the School of Basra, where he attended the lectures of Abū Ubaydah, al-Aṣma’ī, Sa'īd ibn Aws al-Anṣārī and studied ilm an-naḥw (علم النحو, i.e., syntax) with Akhfash al-Awsaṭ (al-Akhfash Abī al-Ḥasan). Over a twenty-five-year span studying, al-Jāḥiẓ acquired a considerable knowledge of Arabic poetry, Arabic philology, pre-Islamic Arab history, the Qur'an and the Hadiths. He read translated books on Greek sciences and Hellenistic philosophy, especially that of the Greek philosopher Aristotle. Al-Jahiz was also critical of those who followed the Hadiths of Abu Hurayra, referring to his Hadithist opponents as al-nabita ("the contemptible"). Al-Jāḥiẓ died 250 [A.D. 869], during the caliphate of al-Mu‘tazz. Al-Nadīm reports that al-Jāḥiẓ said he was about the same age as Abū Nuwās and older than al-Jammāz.

Career While still in Basra, al-Jāḥiẓ wrote an article about the institution of the Caliphate. This is said to have been the beginning of his career as a writer, which would become his sole source of living. It is said that his mother once offered him a tray full of notebooks and told him he would earn his living from writing. He went on to write two hundred books in his lifetime on a variety of subjects, including on the Quran, Arabic grammar, zoology, poetry, lexicography, and rhetoric. Al-Jāḥiẓ was also one of the first Arabic writers to suggest a complete overhaul of the language's grammatical system, though this would not be undertaken until his fellow linguist Ibn Maḍāʾ took up the matter two hundred years later.

… excerpt ends here. Continue reading the full article.

Illustrations

Al-Jahiz illustration
Al-Jahiz: A page from a reproduction of al-Jāḥiẓ's Kitāb al-Hayawān depicting an ostrich (Struthio camelus) in a nest with eggs. Basra.
A page from a reproduction of al-Jāḥiẓ's Kitāb al-Hayawān depicting an ostrich (Struthio camelus) in a nest with eggs. Basra.

Worked examples

Example 1 — a first encounter with Al-Jahiz

Start with the simplest possible case. Write down what Al-Jahiz claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Al-Jahiz before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Al-Jahiz ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Al-Jahiz

In research
Al-Jahiz appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Al-Jahiz in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Al-Jahiz is common in secondary-school and first-year university syllabi. It links to neighbouring topics 776 births, 860s deaths, 8th-century Arab people, so understanding it makes those chapters shorter.
In everyday life
Look for Al-Jahiz outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Al-Jahiz in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Al-Jahiz means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Al-Jahiz out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Al-Jahiz in simple terms?

Abu Uthman Amr ibn Bahr al-Kinani al-Basri (Arabic: أبو عثمان عمرو بن بحر الكناني البصري, romanized: Abū ʿUthman ʿAmr ibn Baḥr al-Kinānī al-Baṣrī; c. 776–868/869), commonly known as al-Jahiz (Arabic: الجاحظ, romanized: al-Jāḥiẓ, lit. 'the bug eyed', [al.dʒaː.ħɪðˤ]), was an Arab Muslim theologian, i…

Why does Al-Jahiz matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Al-Jahiz?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Al-Jahiz.

Tags

  • 776 births
  • 860s deaths
  • 8th-century Arab people
  • 9th-century Arab people
  • 9th-century Arabic-language writers
  • 9th-century Muslim scholars of Islam
  • 9th-century people from the Abbasid Caliphate
  • Arab writers
  • Darwinism
  • Medieval Arabic literature
  • Mu'tazilites
  • Scholars from the Abbasid Caliphate

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