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Yeah that's a good point. Some beer styles are very distinct as well so maybe they are easier to replicate the vibe. English ales come to mind in that.

Hamilton is a very common name so I bet there are a lot of them around Europe and North America. Yours was probably first. Scotland is a lot older than Canada I'm guessing. At the very least people have inhabited the region longer I'm sure.

I might Google and see!

I have had some fine German ale over here. We have a brewery in which the guy who owns it worked and trained in German brewers and bought that style of brewery over. They are awfully nice!

That's a good point too. If the brewer is trained in a particular region and brewing a certain style of beer that would make a difference as well.