Very interesting and also tough question. I'm not quite sure about..
Is significant, but unpredictable.
Explanation: One of Hitler's reasons for invading Europe was to get more Lebensraum, or Living Space, Breathing Room, etc.
Answer:
These terms may not have been the most appropriate because people, specifically Indians who discovered what we call America (we know them as American Indians/Native Americans). It was not a "New World" or "discovery" to anyone besides Christopher Columbus and his followers; people already knew about it. A term that may fit what he found better is "learning" or "exploration", but it is important to recognize that he did not find America himself.
