Check out these resources for more information about the Reformation:

What Is Reformation Day?
A Visual Timeline of the Reformation
The Geography of the Reformation
The Story of Martin Luther's Conversion
14 Women of the Reformation That You Probably Never Knew About
Why the Reformation Should Make You More Catholic
Why Was the Reformation Necessary
Why Should We Celebrate the Reformation?
Is Protestantism Still at Odds with Catholicism?
"Lift Up Your Hearts": John Calvin's Catholic Faith
Why the Reformation Still Matters
Justification by Faith Alone: Martin Luther and Romans 1:17
The Five Solas - Points from the Past that Should Matter to You
Sola Scriptura and Sola Fide
Where Does Ultimate Authority Lie?