Sunday 18 January 2009 at 7:00pm on C4

In the second instalment broadcaster and former politician Michael Portillo investigates the role of the Roman Empire in transforming Christianity from an underground sect to the official religion. He demonstrates how 1,700 years ago Emperor Constantine laid the foundations for one of the most powerful religious organisations in history with a global reach of over two billion worshippers. Constantine’s rich legacy includes glorious art, music, architecture and even the Bible itself. But did he distort the central message at the heart of Christianity?

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