Why did the Protestant Reformation Happen

Christianity
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6 Video Views·Dec 24, 2025
The Protestant Reformation is widely known for Martin Luther's publication of his 95 Theses,
or Disputation of the Power and Efficacy of Indulgences, and marks a second schism of
sorts for the Catholic Church. In reality, the Reformation of Western Christianity was
long in the making, and Martin Luther was not its only leader. While many view the start of
the Protestant Reformation as having been in 1517 following the publication of Martin Luther's
Theses, the actual date of its beginning is somewhat unclear. There were essentially three
main Reformation movements, one in Germany, one in England, and one in Switzerland, with all of
them occurring around the same time in the 16th century. The German Reformation, led by Martin
Luther, is generally the movement that most people think of when the topic is discussed.
Martin Luther, prior to the Reformation, was actually a professor of theology and a priest.
During his time as such, Luther was sent to represent the observant German Augustinian
monasteries in Rome between the fall of 1510 and spring of 1511, where he came to notice a lack of
spirituality throughout Rome that left a lasting negative impression on him. This pessimistic view
of the Church only worsened after Luther discovered a Dominican friar, Johann Tetzel,
who preached that sins could be forgiven by the purchase of a letter of indulgence approved by
the Pope, allowing for one's soul to skip time in purgatory before entering heaven.
The money from these indulgences was being put toward the rebuilding of St. Peter's Basilica
in Rome, which Luther bravely claimed should be paid for by the wealthy Pope himself.
In response to this indulgence controversy, Luther wrote his 95 Theses, which was supposed
to inspire a debate about the issuance of indulgences, with the assumption that his
concerns would be heard and understood. Copies of the propositions were sent out to a few friends
and to Archbishop Albert of Mainz, who was Tetzel's superior, accompanied by a request for the friar's
preachings to be stopped. Luther's grievances were not met with the reaction he anticipated,
and his disapproval of the Church began to expand into growing theological disagreements.
By 1518, Luther had come to believe that the view of the Church, which stated that salvation came
from both the grace of God, in addition to good works and human actions to earn reconciliation,
was utterly false, and that humans were unable to earn salvation. It was simply an act of God's
forgiving grace. Furthermore, Luther came to the conclusion that the Bible itself should be viewed
as the only reliable source of information and authority, as opposed to the teachings of the
Church and the Pope having that role. Since the printing press had recently been discovered,
this gave Luther a vast advantage, as new translations of the Bible could now be printed
and provided to anyone with the ability to read, so that they could learn from the Bible themselves
instead of relying on priests and other clergy members. In Switzerland, a reformation paralleling
Luther's began around 1522 under the guidance of Huldrych Zwingli, William Ferrell, and later
John Calvin. Zwingli, a priest, taught similar ideas to what Martin Luther was preaching in
Germany, but on an even more radical level. Beginning in Zurich, Zwingli's movement quickly
took a stronghold in the city, and by 1526, Ferrell, a fellow reformer, began to assist him
in spreading the message to the French-speaking parts of Switzerland, giving sermons in different
cities, including Geneva. In 1536, Ferrell met John Calvin, who authored the Institutes of the
Christian Religion Doctrine, and would help Ferrell to organize the Reformed Church of Geneva.
Additionally, Martin Luther was not the only reformer to translate the Bible into vernacular
for the masses to read themselves, as the Swiss did the same. The Reformation also spread rapidly
in Switzerland, and Calvin's work reached as far as Scotland to the west and Transylvania to the
east. As both Calvinism and Lutheranism gained traction throughout Europe, England fell into
its own reformation. In the far west, King Henry VIII prompted the Third Simultaneous Reformation
for both religious and political reasons. Mainly, the monarch was outraged by Pope Clement VII's
denial of an annulment for Henry's marriage to Catherine of Argonne. In 1534, the English king
declared that he should from then on be the only final authority on all matters within the English
Church, thereby establishing the Anglican Church and the start of a new reformation movement.
King Henry also insisted that the Bible be made available for the people,
demanding that every parish obtain a copy, and additionally requiring that liturgy be prepared
in English. Paralleling Henry's changes, Scotland also joined the Reforms thanks to the inspiration
John Knox received from John Calvin back in Switzerland. Knox now formed the Presbyterian
branch of Protestantism. Eventually, though shamefully late, the Catholic Church formulated
a systematic response to the growing Protestant Reformation, in the form of what is simply called
the Counter-Reformation. Although some steps were taken to address the Reformers earlier on,
such as the excommunication of Martin Luther back in 1521, the Catholic Church as a whole
failed to do much at the start. The first major move taken by the Church was under Pope Paul III,
who called for the Council of Trent in 1545. The three-part series of councils held between 1545
through 1563 not only addressed the challenging of Catholic doctrine by the Protestants,
but also established decrees of self-reform. In the first council, the bishops in attendance
were divided as to whether full-out reform was needed or simply a clarification of Catholic
doctrine. Many issues were discussed, such as the Creed of Nicaea and Constantinople,
which was confirmed as the foundation of the Catholic faith, the number of sacraments,
which should be seven, tradition, which was accepted as a source of faith,
as well as other subjects that had been challenged by Martin Luther in particular,
which subsequently led to the decision to formally deny the Reformers' idea that humans had no
ability to earn salvation through behavior such as good works. Political discord put the progress
of the council on hold until the next period of talks began in 1551. As the second part started,
a growing number of Protestants, mainly from Germany, began to assist upon a re-evaluation
of what had been decided upon by the council back in 1545, but nothing of the sort was done,
and the council continued on. This time, one of the main subjects addressed was the Sacrament of
Eucharist, which the Catholic Church confirmed to include that the bread and wine were believed
to truly transform into the body and blood of Christ, although not in appearance. This assertion
was of course in direct contradiction to the Reformists, which came as no surprise. Further
doctrine was solidified before the council was interrupted by political disputes yet again.
When Pope Paul IV took over, the whole concept of the council came under serious doubt due to his
direct opposition to the notion. Finally, in 1562, Pope Pius IV decided to reinstate the council
and the bishops regathered. During the last leg of the meetings, updated statements and decrees
were made concerning Mass, Holy Orders, Purgatory, Matrimony, Indulgences, Saints, and again,
more details concerning Eucharist. Reforms were also made for the morals of clerics,
and much of the corruption and abuses that had inspired the Protestant Reformation,
such as the clerical overspending and favoritism within appointments made to the church office,
were soon resolved, allowing the Catholic Church to regain a large amount of its support
throughout Europe. Still, it was too late to reverse the break within the Western Church,
and Protestantism was on an upward path of growth at a fast pace. To combine the spreading Protestant
theology, the Roman Inquisition put a heavy focus on the prosecution of anyone deemed a heretic,
such as the Protestants themselves. While the Roman Inquisition was drastically milder
than the previously established Spanish Inquisition, it was famously known for putting
Galileo on trial in 1633. Furthermore, the effects of the Protestant Reformation's popularity
triggered wars of religion all throughout Europe, with one of the first being fought in France
between the Catholics and Protestants, and ending in the regaining of France for the Catholic Church,
though also providing a level of tolerance for the Protestants in the area. The Thirty Years'
War broke out in 1618 as well, mainly in modern-day Germany, and is said to have potentially
wiped out 40 to 60 percent of their population. Other wars with Catholic versus Protestants
undertones would include the Scottish Jacobite Rising, the Skamal-Caldic War, the Dutch Revolt,
and many more. Even wars that were not solely based on religious conflict were fueled by the
disconnect between Catholics and Protestants. Today, though, the relationship between the
There is still a sharply clear schism between the beliefs of Protestants and Catholics,
and some disputes and even violence have only recently died down, or still remain today in
small pockets of the world. The history and existence of the Protestant Reformation not
only stands as a vastly significant event due to its contribution to the creation of today's
Protestant Christian denominations, but it also shows the true uniqueness of the Catholic
denomination, which had clearly survived the Great Schism only a few centuries prior.
Now, around the world, we have thousands of smaller Christian branches or denominations,
divided mostly into the Catholic, Orthodox, Protestant, Anglican, Assyrian, and Restoration
Undoubtedly, the Protestant Reformation more than helped to shape modern Christianity.
