Your goal: drag each era onto the line in the order it happened — from the ancient world to the phone in your pocket. Different tools, one unbroken job: moving people by voice.
Tap or drop a card to hear its one-line story…
Placed
0 / 7
In the right spot
0 / 7
Stuck? Tap a card to read its fact, then ask: did this come before or after the one beside it?