The crusades are considered to be a turning point in european history because they brought an end to

a. the power of the catholic church
b. wars between people of different religions.
c. the period of time known as the middle ages.
d. trade between europe and southwest asia.

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