400. That’s an error.

Google cannot redirect you to https://www.thriftbooks.com/w/a-history-of-britain-at-the-edge-of-the-world-3500-bc-ad-1603_simon-schama/346205/item/12571634/?isbn=0786866756&idiq=12571634 because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.