<span>It is the Songhai Empire.
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Answer:
Mary Winston Jackson (1921–2005) successfully overcame the barriers of segregation and gender bias to become a professional aerospace engineer and leader in ensuring equal opportunities for future generations. Mary Jackson was born in Hampton, Virginia, and attended the all-black George P.
The walls of Benin city and the other Hausa city states contribute to their development ans success because it <span>protected people and made merchants feel safe</span>
