What happened during 1985-86 while reagan was president

These are thing that happened while Regan was president.
-Cold War.
-Libya bombing.
-Challenger disaster.
-Iran–Contra affair.
-“Tear down this wall!"
-INF Treaty.

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

North korea has been ruled by dictator since 1948