About TIMELINE

What is TIMELINE?

TIMELINE is an interactive web trivia game where players arrange five historical milestones in true chronological order from deepest past to most recent. Each daily challenge resets at 00:00 UTC with one official seeded puzzle shared worldwide.

Game Modes

• Daily Puzzle: One global 5-card timeline each UTC day across 1,000 verified historical events, complete with consecutive Daily Streaks, a proportional chronological minimap, and a Past Archive to replay missed days.
• Unlimited Mode: Endless streak-free play across four lenses — All Eras, Century Duel (all five events inside a single century), Modern 1800+, and Pre-1800 — tracking your rolling AVG / 5 and 5/5 Clears.
• Friend Challenges: Every Daily puzzle and Unlimited round generates a deterministic ?challenge=... link so friends can duel on the exact same five events.

Historical Verification & Feedback

Events span science, culture, conflict, invention, and world civilizations, each paired with primary dates, brief context, and Wikipedia reference links revealed after you lock in your answer.

Spotted a date issue or want to suggest an event? Use the Send Feedback button on the main game page.