Picture a big wooden church door in a small German town, more than 500 years ago. A monk walks up with a hammer and a list of 95 statements he wants the church to talk about. He nails the paper to the door, where everyone in town will see it, and walks away. That happened on October 31, 1517, and Christians still mark that day every year. It is called Reformation Day, and it is one of the best history days of the year to teach your kids.
What is Reformation Day?
Reformation Day is October 31, the day we remember when Martin Luther nailed his Ninety-Five Theses to the church door in Wittenberg, Germany, in 1517. Luther was a monk and a Bible teacher who had found things being taught in the church that he could not find in the Bible, and he wanted the church to talk about it. What started as a call for a conversation grew into the Reformation, a movement that brought the church back to the Bible and to the good news that sinners are saved by grace alone, through faith alone, in Christ alone. Families mark the day by reading the story, singing, and thanking God for His Word.
The story, told simply
Martin Luther had not always been at peace. As a young monk he prayed, fasted, and confessed his sins over and over, trying to make himself right with God, and he still felt the weight of his sin. Then, reading the Bible he taught every day, he came to Romans 1:17: "The righteous shall live by faith." It was like a door opening. A sinner is not made right with God by good works, payments, or punishments. He is made right by God's grace, through faith in Jesus Christ.
Around that same time, a man named Johann Tetzel was traveling through Germany selling indulgences, papers people could buy that promised to shorten the punishment for sin, even for family members who had already died. Luther could find none of that in the Bible. So he wrote down 95 statements about it, meant for the church to debate, and on October 31, 1517, he nailed them to the door of the Castle Church in Wittenberg, the town notice board of its day.
Luther thought he was starting a discussion. Instead, thanks to the printing press, his words spread across Germany in weeks, and people everywhere began asking his question: what does the Bible actually say? Church leaders pressed him to take it all back, and in 1521 he stood before the emperor and would not back down unless someone could show him from Scripture where he was wrong. God protected him, and in hiding at the Wartburg Castle he translated the New Testament into German, so ordinary people could read God's Word in their own language for the first time.
Why it matters for your kids
The Reformation gave the church back five big truths, and they are simple enough for a child to hold onto. Scripture alone: the Bible is our final authority, above every teacher and tradition. Grace alone: we are saved because God is gracious, not because we earned it. Faith alone: we receive that salvation by trusting in Christ, not by stacking up good works. Those truths are worth handing to our children on purpose, because our kids will spend their whole lives hearing voices that claim authority. Reformation Day teaches them to ask, kindly and without fear, "Where does the Bible say that?"
If you want the whole story of Luther’s life told slowly, we wrote it here:
A family worth meeting
Luther later married Katharina von Bora, a nun who had escaped from her convent because she had come to believe the same truths. Their home in Wittenberg was loud and full: six children, students at the table, guests in every corner. Luther wrote the hymn "A Mighty Fortress Is Our God," and the family sang it. Their story helps kids see that these big truths are not just for church buildings. They are for kitchen tables, too.
For kids who learn best with pictures, our one-page comic on the Ninety-Five Theses is free in the shop: And if your family wants Luther's whole life in pictures, the complete 12-comic Martin Luther collection:
Simple ways to mark the day
You do not need a big production. Pick one or two of these:
Read a Reformation book together at the table. Our free Reformation Month Family Reading List has the ones our family comes back to every October:
Read the free Ninety-Five Theses comic together and talk about what an indulgence was and why it troubled Luther.
Sing “A Mighty Fortress Is Our God” together, even if it is just the first verse around the table.
Let your kids tape their own "theses" to your front door: a list of things they are thankful God has taught them from the Bible.
Talk through a question or two from the list below.
Questions to talk about together
Luther kept asking, "What does the Bible actually say?" Why is that a good question to ask, and when might you need to ask it?
What is the difference between trying to earn God’s love and receiving it as a gift?
Why did it matter so much that ordinary people could read the Bible in their own language?
If you could tape a list to your church door today, what truths from the Bible would you want everyone to remember?
However your family marks it, the heart of the day is simple: God gave us His Word, and He saves sinners by grace through faith in His Son. That is worth celebrating every October 31.
To God be the glory!