There was the compass and the astrolabe
Answer: in ancient Babylon clay tablets were used for business transactions when fingerprints were necessary.
Answers:
The Islamic empire extended into North Africa.- C)
The gold-salt trade brought Islamic Arabs into western and southern Africa. - D)
To become naturalized in the United States, an applicant must be at least eighteen years of age at the time of filing, a legal permanent resident of the United States, and have had a status of a legal permanent resident in the United States for five years before applying.
Explanation:
Britain took 30% of Africa's population