Ow did trade with arabs affect the development of african kingdoms? a. it contributed to the creation of an agricultural class. b. it led to the decline of city-states. c. it led to the rise of tribal communities. d. it contributed to the creation of an elite, ruling class.

It allowed for things to be produced much more quickly and efficiently 

The  frame of government of pennsylvaniawas a constitution for the  province of pennsylvania a  proprittarycoony granted to  william penne by  charles ii of england. the frame of government has lasting historical importance as an important step in the  development of american and world democracy.