The Age of Religious Reform, 1490–1648
"How Luther Went Viral," The Economist
This article and accompanying video discuss how Martin Luther’s ideas spread and draw parallels to modern social media.
"Calvinism," "In Our Time" podcast
Host Melvyn Bragg and guests discuss the ideas and impact of John Calvin.
"Holy Roman Empire," Britannica
Read more about the Holy Roman Empire from the Encyclopedia Britannica.