Scientists say they now know where Black Death plague started

I don’t think that was ever a supported view. When I was in high school decades ago the view, even then, was that it came from somewhere in Asia, probably China.

They knew with a high degree of certainty the plague spread along the Silk Road carried by blood feeding parasites on rats. They had timelines of outbreaks well documented, but they didn’t know where it first infected humans.

iiuc that hasn't been the majority scientific view for at least the last 5 years