Context:

Described as 'the great historian of Protestantism' and quoted multiple times about Luther's theology and his 'raw Trumpian brilliance at German language polemic.' The quotes suggest these come from Ryrie's written work on the Reformation/Protestantism.

Context:

Referenced as 'his wonderful book on Protestants' in the context of telling a story about Quakers and a servant girl refusing to curtsy

Context:

Described as 'a brilliant historian of Protestantism' who 'wrote a wonderful book about it' - referring to a book about Protestantism. The host references a story from this book about a servant girl named Elizabeth Andrews refusing to curtsy.