PBS
Wnet: Thirteen: Access Islam: Timeline
Offers an interesting and easy way to study the religion of Islam by providing a timeline of Islamic history broken down into years starting with the "Life of Muhammad" up to "Islam in America" today.
Princeton University
Princeton University: The Abbasids (750 1517)
An article which discusses the changes that were brought about by the Abbasids. Includes a family tree and resources for more information.
The History Cat
The History Cat: The House of Wisdom
Describes how Baghdad grew into a place of scholarship during the Golden Age of Islam. The Caliph, Abdullah Al Ma'moun, brought many foreign scholars to translate books by renowned thinkers and philosophers for Baghdad's House of Wisdom....
Other
Al Islam: Slavery in Ancient Times
This resource gives a history of slavery from pre-Islamic Times and its continuation under Islam.