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I don't know about Africa, but it is not exactly controversial that China and other places had high quality steel before Europe.


Please provide citations and what is meant by "high quality", and if you are referring to at scale using blast furnaces vs small artisanal production.


AFAIK Serendib had "large" artisanal "blast" furnaces making "high tech" crucible steel maybe as far back as 300 BC :

https://www.nytimes.com/1996/02/06/science/ancient-smelter-u...


Very cool, thanks for the link!!




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