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Islam 101: Chronology of Crusades
Timeline of the major events of the Christian crusades from 1095 to 1291 A.D.
Other
H Museum: Iraq the Cradle of Civilization at Risk
A comprehensive site dealing with the cultural aspects of Iraq. There are many historical documents and primary source links on this site.
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Look Lex Encyclopedia: Bahrain: Religions
An interesting look at the religions and ethnic groups that make up the country of Bahrain where the majority of the population is Muslim of the Shi'i sect.