Known as the Reformation, this famous split from the Roman Catholic Church spawned, among other things, Protestantism. The reformers included Martin Luther, John Calvin, Huldrych Zwingli, and Gustav Vasa, among others and was furthered by the new invention, the printing press.
Regular Websites
Displays a chart of notable leaders in the Reformation, and each of their portraits, birth and death years, cause of death, associated tradition, and published works. - Chart of Protestant Reformers
http://www.religionfacts.com/christianity/charts/protestant_reformers.htm
Outlines the Reformation, including the causes, the ideas and purposes of the reformers, how the movement spread, and results as well as consequences. - New Advent: The Reformation
http://www.newadvent.org/cathen/12700b.htm
The History Guide: The Protestant Reformation
Part of a lecture series about early modern European history, this is a lecture about the Protestant Reformation. It begins with the historical factors which led up to the reformation, the struggle, and the results. - The History Guide: The Protestant Reformation
http://www.historyguide.org/earlymod/lecture3c.html
Presents a profile of Martin Luther, including his early life, his attempt to find peace with God, and his translation of the New Testament into German. Also looks at his theories of grace, indulgences, and the response of the Roman Catholic Church to his actions. - Theopedia: Martin Luther
http://www.theopedia.com/Martin_Luther
Tyndale Seminary: 16th Century Reformation Reading Room
Contains numerous resources a bout the 16th Century Reformation, including books such as the Blackwell Companion to Protestantism, New Westminster Dictionary of Church History, and numerous introductory texts. - Tyndale Seminary: 16th Century Reformation Reading Room
http://www.tyndale.ca/seminary/mtsmodular/reading-rooms/history/16th-century