The long, sad journey of the native americans to their new home in the west was called the

The long, sad journey of the Native Americans to their new home in the west was called the Trail of Tears.

What does this mean ? ?

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