How did the railroads impact the relationship between eastern cities and the great plains

It helped build stronger trade and communication throughout the Plains and eastern city, exposing each other to things that they probably wouldn't have had. Led to stronger economic growth and travel amongst.

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful