Answer to:
Do you think we can really learn from the past? of course we can. All present global problems have happened before e.g. interfering in Middle East problems and the Crusades; dictatorships, Hitler in recent history; Global warning, then end of the dinosaurs to name a few.

Answer to:
What's the meaning and origin of the Australian slang "fair dinkum"? The story I heard was that it came from the Chinese gold miners. During the gold rush, booze was paid for with a pinch of gold. The miners paid for drinks with a pinch of gold and if the measure wasn't enough, the miners used the term "fair drinkin'" which meant "fill it up" the Chinese copied with "fair dinkum". So that's another version of the...