I became aware of Jews in my early teens, as I started to pick up the signals from the Christian church. Not that I was Christian – I’d been an atheist since I was five. But my father, a Congregational minister, had some sympathy with the idea that the Jews had killed Christ. But any indoctrination was offset by my discovery of the concentration camps, of the Final Solution. Whilst the term 'Holocaust' had yet to enter the vocabulary I was overwhelmed by my realisation of what Germany had perpetrated on Jews. It became a major factor in my movement towards the political left. I’d already read 'The Grapes of Wrath' by John Steinbeck, the Penguin paperback that would change my life. The story of the gas chambers completed the process of radicalisation and would, just three years later, lead me to join the Communist Party.

Caution in handling generally accepted opinions that claim to explain whole trends of history is especially important for the historian of modern times, because the last century has produced an abundance of ideologies that pretend to be keys to history but are actually nothing but desperate efforts to escape responsibility.