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Each clue costs 50 points.
You're shown a historically significant event. You know what happened — pin down when.
Pick a date with the date picker — type the year directly, scroll the wheel on iOS, or use the calendar popup on desktop. The flag on the timeline updates as you go.
Stuck? Tap any of the six category buttons under "Need a hint?" to reveal a clue about the era — each costs 50 points. Time matters too: a small penalty starts ticking 30 seconds in (1 pt per 5 s, capped at 100). Commit when you're ready — you only get one guess, scored on proximity.
Scoring: Exact day 1000 · within a week 800 · within a month 600 · within a year 400 · within a decade 200 · else 50. Then subtract hints × 50 and the time penalty.