List four contributions of the ancient Greeks to future civilization .

1. Math

2. Science

3. Literature

4. Philosophy

To phrase this in a sentence, you could say that the Ancient Greeks made important contributions to future civilization by their contributions to math, science, literature and philosophy.

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).

c. more people could read and interpret the bible for themselves