Whitch is another name for an orthodox view of a historical event or period

Which would be good historical evidence when studying manifest destiny?

Why was the agricultural revolution more successful in england than in the rest of europe?

Why are slanted roofs found on many buildings within russia and finland? a. to prevent ice slides. b. to prevent the build-up of water during heavy rains. c. to prevent heat from escaping during the clod winter months. d. to prevent snow build-up.