Who wrote the Summa Theologica, an authoritative summary of all medieval knowledge on traditional subjects?

Frank Lloyd Wright designed several houses that he described as "of" the land, not "on" it, calling this style of house

a) the Prairie House. b) the Landscape House. c) the Craftsman-style House. d) the machine for living.

Which city rivaled Byzantine Constantinople in trade?

a) Venice b) Rome c) Ravenna d) Milan