Question

what is the constrast that he mentions​

Answer 1

Answer:

The ‘extraordinary human disaster’ that Mandela mentioned at the beginning of his speech refers to the inhuman practice of apartheid i.e., the racial discrimination suffered by the blacks at the hands of whites in South Africa. At the end, the ‘glorious human achievement’ that he spoke of refers to the establishment of South Africa’s first democratic, non-racial government.

Explanation:

Answer 2

The `extradinary human disaster 'that Mandela mentioned at the beginning of his speech refers to the inhuman practice of Apartheid.