Which decision "voided" the missouri compromise and let territories decide on the issue of slavery themselves instead of letting congress do so?

Compromise of 1850 hope this helps

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