At the end of the discussion among okonkwo and his friends, what major historical event is foreshadowed? what peculiar belief about white people is expressed?

Toward the finish of the discussion, bride-price is chosen through a custom. Her cost is bartered between the lady of the hour's family and the prepare's relatives by going forward and backward amounts of sticks that speak to numbers. The men eat and drink, alluding to white men contrarily and contrasting their white skin with untouchables' white skin. They call them "the white-cleaned".