21.19. 19. Of Commerce after the Decay of the Roman Power in the East.
The Mahomedans appeared, conquered, extended, and dispersed themselves.
Egypt had particular sovereigns; these carried on the commerce of India,
and being possessed of the merchandise of this country, drew to
themselves the riches of all other nations. The sultans of Egypt were
the most powerful princes of those times. History informs us with what a
constant and well-regulated force they stopped the ardour, the fire, and
the impetuosity of the crusades.