>>I'm reading this great book called "Genghis Khan and the Making of the Modern World". In it, Jack Weatherford describes the Mongol defeat and occupation of Baghdad in 1257. It wasn't defeated and occupied again until 2003 by the Brits and US.
>
>From http://i-cias.com/e.o/baghdad.htm:
>
>1258: Baghdad is conquered and razed by the Mongol chief Hülegü.
>1401: Baghdad is sacked by Timur Lenk.
>1534: Baghdad is conquered by the troops of sultan Süleyman 1, an incorporated into the Ottoman Empire.
>1623: Baghdad is conquered by the Persians.
>1638: The Ottomans take back Baghdad.
>1917: Baghdad is captured from the Ottomans by British troops.

As per the title, by non muslims.