1499 - Katharina von Bara, wife of Martin Luther, formerly a Roman Catholic nun is born (Source)
R.C. Sproul put it this way in his wonderful book, Faith Alone: An Evangelical Doctrine of Justification by Faith:
"Does saving faith require a trust in the righteousness of Christ alone as the grounds of our justification? Or may a person have a different view of the gospel and still be a Christian?"
"The Reformation was waged, not over the issue of justification by faith, but over the issue of justification by faith alone. It was the Sola of Sola Fide that was the central point of dispute."
Luther's Great Hymn: A Mighty Fortress is Our God
1737 - Thomas Paine, prominent for publishing Common Sense (1776), which established him as one of the Founding Fathers of the United States is born (Source)
Recommended sermons and podcasts:
Faith, Common Sense, and Science, by Francis Lee Nigel
The American Mind in 1776, Part 1
1918 - Ukrainian-Soviet War: The Bolshevik Red Army, on its way to besiege Kyiv, is met by a small group of military students at the Battle of Kruty (Source)
Recommended sermons and podcasts:
The Deadly Double Standards of Communism vs. Fascism - townhall.com