In the case Munn v. Illinois, the Supreme Court the state’s right to regulate the railroad industry within its borders.

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

The central idea is that the hiv/aids epidemic is serious.