Al-Khwarizmi, Muhammad Bin Musa
- Biography of one of the most influential Muslim mathematicians, born in a town in what is present day Uzbekistan around 770.
- http://www2.sjsu.edu/depts/Museum/alkhwa.html

They Came to Baghdad
- An account of the tumultuous history of the "city of peace", in its time of glory as the seat of the Abbasid Caliphs, up to its sack by the Mongols.
- http://weekly.ahram.org.eg/2003/634/bo2.htm

Medieval Sourcebook : Abul Hasan Ali Al-Masu'di (ca. 895?-957 CE)
- "The Book of Golden Meadows" was written about 940 CE; these excerpts cover the lives of several Abbasid caliphs.
- http://www.fordham.edu/halsall/source/masoudi.html

Islam Chronology
- A timeline of the Abbasid Caliphate, covering the establishing of the four orthodox schools of law; include links to translations of original source materials.
- http://campus.northpark.edu/history/WebChron/Islam/Abbasid.html

Egypt: History - Abbasid Period
- Covers the impact of Abbasid rule on Egypt, and the rise of the Tulunids.
- http://www.touregypt.net/habbasid.htm

Baghdad under the Abbasids
- A description of the city under Abbasid rule by Yakut (c. 1000 CE); from the Medieval Sourcebook.
- http://www.fordham.edu/halsall/source/1000baghdad.html

Baghdad: Metropolis of the Abbasid Caliphate
- Chapter 5 of a book by Gaston Wiet describes the intellectual, cultural and scientific ferment of the Abbasid court.
- http://www.fordham.edu/halsall/med/wiet.html

The Art of the Abbasid Period (750-1258 A.D.)
- An online exhibition from the Metropolitan Museum of Art (New York) offers a profile of the caliphate, and illustrations of their cultural and artistic achievement.
- http://www.metmuseum.org/toah/hd/abba/hd_abba.htm

Al-Mansur 712 - 775
- Brief profile of the second Abbasid Caliph.
- http://www.hyperhistory.com/online_n2/people_n2/ppersons4_n2/almansur.html

Abbasids
- Profiles of the most prominent Abbasid Caliphs, from the Islamic Dictionary. [English and Arabic]
- http://dictionary.al-islam.com/Eng/Dicts/SelDict.asp?Lang=Eng&DI=29&Theme=45

The Abbasid Golden Age
- A summary of the high points of the Caliphate, now based in Baghdad.
- http://www.nmhschool.org/tthornton/mehistorydatabase/abbasid_golden_age.htm

Abbasid Caliphs
- Part of a longer article on the history of Islam; outlines the Abbasid caliphate, independent and alongside other dynasties, then under the protection of the Seljuks until the death of Abdullah al-Musta'sim and the start of the Khanid dynasty.
- http://www.friesian.com/islam.htm#abbas

Abbasid
- A summary history of the Caliphate, as rulers and later under the protection of the Mamluks in Egypt; from The Columbia Encyclopedia, Sixth Edition. 2001
- http://www.bartleby.com/65/ab/Abbasid.html

The Abassid Dynasty
- A summary of the second Arab Caliphate, their achievements, and threats to their rule. Also covers the development of the Mamluks, and the decline of the dynasty.
- http://www.wsu.edu/~dee/ISLAM/ABASSID.HTM