Christian denomination

===Protestant Reformation (16th century)===
{{main|Protestant Reformation}}

The Protestant Reformation began with the posting of [[Martin Luther]]'s ''[[The Ninety-Five Theses|Ninety-Five Theses]]'' in [[Saxony]] on October 31, 1517, written as a set of grievances to reform the pre-Reformation Western Church. [[Martin Luther (resources)|Luther's writings]], combined with the work of [[Switzerland|Swiss]] theologian [[Huldrych Zwingli]] and French theologian and politician [[John Calvin]] sought to reform existing problems in doctrine and practice. Due to the reactions of ecclesiastical office holders at the time of the reformers, these reformers separated from the Catholic Church, instigating a rift in [[Western Christianity]].

In [[England]], [[Henry VIII of England]] declared himself to be supreme head of the [[Church of England]] with the [[Act of Supremacy]] in 1534, founding the Church of England, repressing both Lutheran reformers and those loyal to the pope. [[Thomas Cranmer]] as [[Archbishop of Canterbury]] introduced the Reformation, in a form compromising between the Calvinists and Lutherans.