Chrono Trivia is a free daily history puzzle game. Each day, six new challenges appear — one per category. Your goal is to arrange four real historical events in chronological order, from earliest to most recent.
Every puzzle is built from a database of over 1,000 verified historical events spanning from the year 1215 to today — covering Entertainment, Technology, Sports, Science & Space, World History, and Pop Culture. After completing a puzzle, you see the correct order with years revealed, plus the story behind each event.
Classic mode: sort the events. Expert mode: also guess the year. Earn badges, build daily streaks, and share your results. Play all six categories every day — each one is a fresh challenge.
📚 Browse Past Puzzles & History Explainers →Want to study up — or just read the stories? Every event in the database is published in chronological order on these reference pages:
📜 World History 🔬 Science & Space 💡 Technology 🏅 Sports 🎬 Entertainment 🎨 Pop Culture
A fresh set of puzzles appears every day at midnight in your local timezone — one puzzle per category, plus the six-event Daily Mix. Everyone in the world gets the same events for a given date, so you can compare results with friends.
In Classic mode you only need to drag the four events into chronological order. In Expert mode you must also type the exact year for each event, which is scored separately. Both modes give you three attempts and a hint after your first miss.
Our database is hand-curated and fact-checked against reputable historical sources. If you ever spot an error in a date or a fact, you can report it on the contact page and we'll verify and correct it.
Yes — the game is completely free and no account is required. Your streaks, badges, and settings are saved on your device.
Past puzzles and their answers — with the story behind every event — are available in the archive, and you can read every event in order on the category timeline pages above.