Was the first electric iron invented before or after the lightbulb? But what if it was actually dated somewhere between the development of canned food and the Flying Scotsman's first journey? And was Uranus discovered around the same time as the Cat's Eye nebula?
In Timeline, these are exactly the kind of questions you'll ask yourself each time you try to play one of your cards. There's only one objective: be the first player to play all of your cards correctly in the Timeline!