The period of <span>Muhammad in Medina</span><span> started with the </span>Hijra<span> (migration to Medina) in 622 and ended with the </span>conquest of Mecca in December 629. <span>Muhammad instructed his followers to emigrate to Medina until virtually all of his followers had left </span>Mecca<span>. Being alarmed at the departure of Muslims, according to the tradition, the Meccans plotted to assassinate him. he fooled the Meccans who were watching him, and secretly slipped away from the town.</span>
There are a couple of reasons for why the empire didn't last. One of those reasons is that the empire was too great (big). Because the empire was too huge, it was divided into different parts after Alexander's death. He also didn't have an heir to the throne, so when he died, officials fought for power and to become king, which also contributed to the fall of the empire as well.
There were several factors that moved America towards independence from Britain. They are as followed:
1) The development of an American culture- Even though the colonists were still part of Great Britain during the 18th century, many of these individuals were natives of the colonies and had never even been to Great Britain before. This is a huge transformation from when settlers came here originally to find freedom from religious persecution during the early 16th and17th centuries.
2) Colonists being forced to into wars they did not want to fight in- The British army was constantly fighting with other European powers like France in North America. This resulted in colonists being part of wars they did not want to be in (like the French and Indian War).