Their debates expanded across most of the Western Europe in the 15th and 16th centuries , whilst secular critics also examined religious practice , clerical behavior and the church 's doctrinal positions .
Several theologians harkened back to the early days of Christianity and questioned their spirituality .
theologians ' debates expanded across most of the Western Europe in the 15th and 16th centuries , whilst secular critics also examined religious practice , clerical behavior and the church 's doctrinal positions .
Several theologians harkened back to the early days of Christianity and questioned their spirituality .