What was the most significant use of german submarines during world war i?

Which of the following scenarios illustrates the cultural impact of expanded regional trade for postclassical civilizations? o a. the byzantine empire rises in place of the roman empire. o b. an islamic scholar attends a university in his hometown. o c. internal disputes weaken a large african empire. o d. an arabian sultan wears a robe made from chinese silk.

Which did president carter refuse to do in his attempt to free american hostages taken by iran?

What did the following reformers do during the reformation? martin luther henry viii john calvin