2017 marks 500 years since Martin Luther kickstarted the Protestant Reformation. But was the split between the Catholic and Protestant church a return to truth or a tragic mistake?

Reformed scholar James White debates Catholic advocate Peter D Williams on salvation by grace, papal authority and more.

For Unbelievable? the Conference 2017: http://www.premier.org.uk/whychrist

For James and Peter's forthcoming public debate in London on Catholic doctrine of Mary on Mon 15 May: http://bit.ly/MaryDebate2017

For James White: https://www.aomin.org/

For Peter D Williams: http://www.catholicvoices.org.uk/team/peter-d-williams

For more faith debates visit http://www.premierchristianradio.com/Shows/Saturday/Unbelievable

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The Reformation: return to truth or tragic mistake? James White vs Peter D Williams