But... First Nations of Canada didn't know wheels. They shouldn't invent wheel by themselves, should they? 😊
-sailor(Ocean & Mountain);
2019-12-25(#12558613@0)
But in ancient days people didn't really travel much due to great natural barriers. How could they spread their inventions from Asia to Europe, or vice versa?
-sailor(Ocean & Mountain);
2019-12-25(#12558751@0)