During the Crusades, Peter the Hermit is credited with recruiting 30,000 peasants and poor townspeople to volunteer as crusaders. Peter the Hermit was a priest of Amiens and is widely credited by historians of today as being one of the key leaders of the first Crusade.
There are no options given, but historically speaking it was the invention of "Cotton Gin".
A cotton gin was a revolutionary invention which enabled people to
easily separate cotton fibers and seeds; previously it used to take a large
time sorting it manually. The inventor behind this was <span>Eli Whitney. The processing was made easy but
still slaves were needed to grow cotton.</span>
I don't get it, is this a question or an answer? either way it's correct because during that time the Egyptian Empire was still very much active, but I can't recall them spreading to the Middle East
That everything links together in history