Ah I thought the Norwegians invented it
Nah, technically it first gets conceptualized by a (probably) racist British Band Venom and then it gets imported all over Europe and the US. Norwegians made it 'popular' though.
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82 (Brits)
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84 (Swedes)
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84 (Swiss)
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86 (Japanese)
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87 (Brazilians)
And a lot of the Norwegians actually came out of doing death metal.
To tie this into the actual thread convos and kind of let the diatribe die for the sake of correcting corpsey, arguably the big fact here is that once a scene is centered around a narrative one believes that this scene who is sold to a music enthusiast audience is the main source of who 'evolved' the music, and often goes outside of the genre enthusiast hands who'd argue this was derivative or just rehashing ideas by so-and-so. Because so often the case, music enthusiasts argue that genre fans are limited in their insistent need to praise that which might not be satiating on a digestible manner.