For millenia the people’s and states of western Europe were at war with each other.

They fought the 9 years war, the 100 years war, the Napoleonic wars, two world wars, and way too many others to mention.

These people hated each other. It was a cauldron of “us versus them”

But today with the rise of the EU and an extended period of peace in the region many of “them” have become “us”.

So what caused those centuries of hate, where has it gone, and is it possible to eliminate hate altogether?

Matthew Williams, Professor of Criminology in the School of Social Sciences, Director of HateLab and the Social Data Science Lab at Cardiff University, and author of 'The Science of Hate: How Prejudice Becomes Hate And What We Can Do To Stop It' joined Jonathan to discuss.

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