Every day brings five moments from American history that happened on today’s date: people who were born or died, places that opened or were founded, and events that made the news.

1. 1Tap the map where it happened. Pinch or scroll to zoom in for a closer pin.
2. 2Slide to the year you think it happened.
3. 3Lock in your guess. You score up to 100 per round: most of it for how close your pin lands, the rest for the year.

Rounds get harder as you go, and later rounds count for more (×1, ×1.5, ×2, ×2.5, ×3), for a best possible score of 1,000.

A new puzzle unlocks at midnight, your time.