Nicolas Copernicus helped prove the?

During what century did muhammad recieve his first revelation from god

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

What is the supreme law of the land? the declaration of independence the federalist papers the articles of confederation the constitution