I heard about this beer in America. Wonder if its a knock-off.

I heard about this beer in America. Wonder if its a knock-off.. I was in Prague and I was walking by this bar. Supposedly the beer has been brewing for 300 years. Thats a lot longer than American Budweiser. Wonder where he got the idea from?.
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I was in Prague and I was walking by this bar. Supposedly the beer has been brewing for 300 years. Thats a lot longer than American Budweiser. Wonder where he got the idea from?