Which event prompted a direct exchange of knowledge between Muslim and western scholars? the Black Death
the Crusades
the Great Schism
the Middle Ages

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire