How was cotton gin a blessing and a curse?

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.

The habsburg family rose to power and took control of the?

What deadly disease cost many workers their lives before dr. william gorgas found a treatment?