Nobody would have said 50 years ago that apartheid would have gone in 1990, or that the Berlin wall would have fallen at the turn of the '80s and '90s, or that polio could be eradicated, or perhaps 60 years ago, nobody would have said a man could gone to the Moon.
Ninguém teria dito há 50 anos que o "apartheid" terminaria em 1990, ou que o muro de Berlim teria caído na passagem dos anos 80 para os 90, ou que a poliomielite  podia ser erradicada. Há 60 anos ninguém teria dito  que o homem seria capaz de ir à lua.