What is the term for the use of gold as a nation's currency?

What did kublai khan learn from the chinese advisers he consulted?

Johnny is 13. police arrested hom for spray painting on the side of am office building. because of the in re gault decision

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