ERA #1
Put the six events in order, oldest at the top. Tap two cards to swap them, then check. You have 4 tries: green cards are in the right place, arrows show which way the others need to move.
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How to play: ERA
Six events from history — battles, books, inventions, treaties, spaceflights — shuffled. Put them oldest to newest in four tries. The same puzzle for everyone, in every language.
- You get six events from history, shuffled: battles, treaties, books, paintings, inventions, spaceflights and more.
- Put them in order with the oldest at the top. Tap two cards to swap them, or use the small arrows to move one.
- Press Check. Green cards are in the right place and stay put; arrows show whether the others belong earlier or later.
- Get all six in order within four tries to solve the day. Wars, revolutions and expeditions count from the year they began.

