What did spain do after the american revolution to discourage american settlements west of the appalachian mountains

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

where is the picture of the graph or table?

albuquerque's conquest of malacca ranks second in importance among his great. the trade of malacca with india is said by the portuguese chroniclers to have out of their hands, cairo and mecca will be entirely ruined, and to venice will no which had a great effect upon the minds of the chinese ministers