Random attacks by Indian tribes. The frontier had swamps-to-mountainness terrain. Seeds didn't work in all parts of America, some lived healthy in one area while the same seed could die somewhere else there.
So that the English could win back the Holy land.
The Hijrah was important because it marked the beginning of the Islamic era.
<h3>What is Hijrah?</h3>
Hijrah is also called as Hijra. This was the trip from Mecca to Medina between the Islamic oracle Muhammad and his supporters.
It is a necessary event in the Muslim religion. It celebrates the event of Prophet Muhammad's expedition from the sacred city of Mecca to Medina.
In order to protect himself from standing shot, he privately rejected Mecca and toured Medina, which was at that time called Maghrib. This event of 622 CE represents the start of the Muslim or Islamic era.
Therefore, option A is correct.
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In 1776, America declared independence from Britain. Five years later the congress ratified the first national constitution.
