Answer: For most of the Middle Ages, the Roman Empire was unquestionably the most politically and militarily powerful country in all of Europe.
Explanation: I hope this is right
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 notional barrier separating the former Soviet bloc and the West prior to the decline of communism that followed the political events in eastern Europe in 1989.
Answer:
The war in Afghanistan is the longest war in US history.
Explanation:
