What does an “opportunity to sharpen their minds” mean

Thurgood Marshall Acceptance speech

How did king george iii react to the olive branch petition sent by the second continental congress?

Which empire was called "the sick man of europe? "

Which of the following arguments decided the debate over using the atomic bomb against japan in 1945? using the bomb would destroy the armaments still available to japanese forces in japan. using the bomb would demonstrate the power of the united states to the entire world. using the bomb would shorten the war and avoid heavy casualties among invading troops. using the bomb would enable allied forces to invade and take over the japanese mainland