each question should be 250 words in length, which is equal to about 1 page of double-spaced writing in Arial, Calibri, or Times New Roman 12 point font in a Word document. provide the source for each

each question should be 250 words in length, which is equal to about 1 page of double-spaced writing in Arial, Calibri, or Times New Roman 12 point font in a Word document. provide the source for each one in APA format. 

1. Discuss the methodological challenges of studying Ancient and Medieval African history. How are commonly used terms potentially problematic in studying Africa?                                                                       

use this video to answer the question above: https://www.youtube.com/watch?v=jvnU0v6hcUo

2. How did the geography of Central Asia have an impact on its history?

use this video: https://www.youtube.com/watch?v=vfe-eNq-Qyg

3. How did the Crusaders gain a foothold in the Middle East? What did it take for Salah ad-Din to push them out?

use this video: https://www.youtube.com/watch?v=X0zudTQelzI