One problem with the International Space Station is that it had to be International, and one such nation was Russia. For a long time Russia was the cheapest manufacturer of rockets to get up there. This meant that the ISS orbit had to be tilted. Worst of all there's a patch of nonmagnet in the south [UPDATE 7/15 which blows bubbles at us]. In orbital dynamics what starts north must come south.
"Today" (I know, it's 21 June as I poast) we got word that anomaly is going away. In AD 2320. But still!
This comes from an archaeology of pottery, Ceramic I assume. So from 7000 BC onward. Ceramics are available in Jomon pre-Japan before then but they weren't looked at. Our time is tagged most like to 600 BC.
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