High Range, Australia 
Nomad - Wikipedia

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A nomad (Middle French: nomade "people without fixed habitation")[2] is a member of a community of people without fixed habitation who regularly move to and from the same areas, including nomadic hunter-gatherers, pastoral nomads (owning livestock), and tinker or trader nomads.[3][4] As of 1995, there were an estimated 30–40 million nomads in the...
  
Should we add the millions of forced nomads, the exodus of the masses seeking asylum or refuge?
  
When civilisations and empires collapse, nomads survive. Always.