Were old children’s history books racist?

If Brighton and Hove Council has its way, children as young as seven are to be taught about the ‘white privilege’ supposedly derived from 500 years of colonialism. But is it true that the history we have been learning from childhood has been infused with the great isms of our day – colonialism, imperialism and racism? I thought I would test this on a small scale by going back to the first history books I read.