From: Bill Lucy 

In article , ings{at}sympatico.ca says...
> Actually I've always found it a rather odd concept that nation-states assert
> the right to restrict the movement of humanity around the globe.

It's a relatively recent concept, implemented because of World War I.
Before that, there *were* passports and visas, but they proved to be
unpopular, and were little used before 1914.

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