Voodoo Histories: How Conspiracy Theory Has Shaped Modern History by David Aaronovitch
The biggest problem with studying history is remembering that the people taking part in it didn’t know what was going to happen next. And there is another problem as well – they often didn’t know accurately what had happened before either. People’s motivations are often therefore hard to fathom. And the existence of conspiracy theories makes it even harder. It is in the nature of conspiracy theories that they tend to be very specific to particular times and are often completely forgotten about later. Take for example the Protocols of the Elders of Zion.