What do tragic events such as the Holocaust and terrorist attacks teach us about resilience?

Resilience is likely to be tested during the coming weeks and months in the millions of people who witnessed the terror of last week. Those who watched the attacks and their aftermath on television surely will not experience the same pain and trauma as people who stood in lower Manhattan or worked in the Pentagon. But the attack was so devastating that even those once removed can be deeply affected by the events.

Robert Ursano, chief of psychiatry at the Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Md., says he is worried not only about the immediate victims but about “the 290 million other people in the U.S. and others around the world who watched this on television. Everyone has a stress response to such events."

Explanation:

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.