When was the European Union created

What would lead a historian to consider two events to have a relationship of correlation rather than causation?

How did the battle of okinawa affect president truman’s decision to use the atomic bomb against japan? it showed that japan was close to surrendering. it showed that the us could not win the war without it. it showed that japan was willing to fight to the end. it showed the us could easily defeat japan.

What resulted from president john f kennedy's commission on the status of women