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Bill of Rights

Explanation:

The First Amendment to the United States Constitution prevents the government from making laws which regulate an establishment of religion, or that would prohibit the free exercise of religion.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).