What service did the byzantine empire perform for european civilization?
a. it conquered the turks of central asia.
b. it held back muslim invaders for several centuries.
c. it provided popes to lead the catholic church.
d. it converted many muslims to christianity.

Is revlon performing better or worse than it was the previous day? how do you know?

Which statement describes an important outcome of the congress of vienna? a. napoleon launched his final european military campaigns. b. european states had their borders clearly defined. c. jewish people were given equal right in germanic states d. the slave trade became increasingly important to european economies.

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