1865-1945 1945- 20thcentury american americannationalcharacteristics aspectpsychologique casestudies civilización civilization collectiefgeheugen collectivememory conditionssociales crises crises(aspectospsicológicos) crises(sciencessociales) general geschichte histoire historia historischesereignis history juvenileliterature kollektivesgedächtnis local memory memória(aspectossociais) mirror mémoirecollective nationalcharacteristics newyorktimesbestseller nyt:paperback_nonfiction=2010-05-16 politiekecrises psychischestrauma psychologicalaspects psychologicalaspectsofcrises socialaspects socialaspectsofmemory socialconditions state unitedstates étudesdecas