By examining his past history, every person can discover a great network of intricate plan and purpose, which makes him aware of Hashem’s constant guidance of his footsteps.
Similarly, by examining the events of mankind’s history, one becomes aware of Hashem’s guidance of the affairs of nations.
A misfortune is a message and summons to repentance. A stroke of good fortune is an indication of a good deed that was done. Hashem gives a clue — measure for measure — to indicate the cause of the event. “When one sees misfortunes coming upon him, let him search into his deeds” (Brachos 5a).
History brings us to realize that we have been protected and guided by Hashem as a nation in exile for so long!