Romans i guess im not sure
Harrison's presidency saw the addition of six new states, more than any other president.
True - the purpose of the expedition was to map the new louisiana territory as well as lay claims to the oregon country :)
The Limpopo river separates Botswana and South Africa
I know one of the answers are "the fingers of the wool pluckers would be eaten by the acid that was used to loosen the wool and pulled off by bare hands"
But I am not sure what the other two are, if you get them please let me know.