Question

In 1258, the Abbasid caliphate at Baghdad was brought to an end by (1 point)

* the Mongols.
* its own greed.
* the Seljuk Turks.
* the Umayyads.

Answer 1

The answer appears to be somewhere in this history. Click the link:
http://www.princeton.edu/~batke/itl/denise/abbasids.htm