TimeLine
How close can you get to the exact year?
One event. Six guesses. Each wrong answer tells you whether the real year is higher or lower, narrowing the range until you zero in. Precision rewards patience.
Vibe: Nail-biter
How to Play
Three steps to the year
Read the event
A historical event appears on screen. No dates, no era hints -- just the raw event description.
"The first successful powered flight takes place at Kill Devil Hills, North Carolina"
Guess the year
Type any year. After each guess, you'll see if the answer is higher or lower. The range narrows with each attempt.
Guess 1910? Too early. 1920? Too late. The truth is somewhere between.
Nail it in 6
You have six tries. The fewer guesses you need, the better your score. Get it in one for a perfect round.
Share your result: "Timeline #42 - 3/6" and challenge your friends.
Example Round
Watch the range narrow
Today's Event
"Isaac Newton publishes Philosophiae Naturalis Principia Mathematica, laying the foundation for classical mechanics."
Score: 4/6 guesses used
The Moment
The binary search of history
Every guess is a decision. You know the event happened. You know the rough era. But narrowing from a century to a decade to a single year? That's where the magic lives.
The range shrinks with each guess. The pressure builds. And when you nail it -- when you type the exact year and the screen lights up green -- there's nothing like it.
"I knew the Principia was late 1600s but couldn't remember the exact year. When I got it in 4 guesses I felt like Newton himself."
Think you know your years?
A new event appears every day at midnight. Test your historical precision.
Play Timeline now