Historians look for causes and effects that help to explain how and why events happened.
Answer:
3 years
Explanation:
Angela sun is the lead journalist in the documentary and it took the government 3 years to grant her access to go to the island
The leaders who spread Islam after Muhammad's death were Abu Bakr, Umar, Uthman, and Ali. If you want the answer from a website, I suggest going here
--> http://peopleof.oureverydaylife.com/led-islamic-world-after-muhammad-died-7743.html <-- I hope this answer helps you.
The main reason why the North needed to maintain control of the border states during the Civil War was because "(B) President Lincoln needed the region’s political support to maintain <span>the presidency," since these states remained loyal to the Union but were not necessarily "free states". </span>