Can I try that question again, please?

One of the perils of combining a haphazard approach to research with a terrible memory is that I often recall useful things that I read a long time ago, but it’s impossible to quote them because I no longer know where they were. Worse, I sometimes wonder whether they really existed or whether I made them up for a story. So when someone asked me the other day whether doctors in the ancient world really did perform post-mortems, I was appalled to find myself in a minor panic, mumbling that I wa...