Why do you think Muhammad and his followers started their calendar after the hijra?

How did the spanish prove to be excellent allies in the war? give examples?

Which is the most accurate description of the executive office of the president? groups of advisers who the chief of staff groups of advisers who the president groups of advisers who oversee national security groups of advisers who oversee the economy

Choose one piece of art shown in the unit and identify three elements or principles of art used in the piece. describe how each of the elements/principles is used in the artwork.