The history timeline game

A timeline that fits everything

Imagine a normal ruler from the Big Bang to today. The last five thousand years of recorded history — every city, every empire, every war and every moon landing — would occupy less than the width of a hair. Almost the entire ruler would be empty space labelled “nothing much, then stars”. That is not a playable game, and it is a misleading picture of history too.

Gazillion uses a logarithmic scale instead. Each era gets a similar slice of the bar even though the eras differ vastly in length. The result is a timeline where 13.8 billion years fit on one screen, where the Stone Age is visible next to the twentieth century, and where a range of ten years near 2020 is drawn wider than ten times that range in deep time. Deep time compresses; recent history stretches out. Both are still there.

How to read the timeline while you play

The bar is tinted by era, so the colour under your handles tells you where you are before the labels do. As you zoom, the tick labels relabel themselves: centuries become decades near the modern end, and millions of years become hundreds of millions out in deep time. A live range readout tells you the current width in years, and a live era label tells you which world the scene is morphing towards.

You can drag either handle, drag the space between them, tap to aim a handle, pinch or scroll to zoom, and switch to typed years for precise answers. Snapping keeps you on tidy values while you think; the thunk when you cross a nice magnitude is the sound of a range becoming legible. Nothing about the controls changes the scoring — the score only cares about the truth and the width.

The eight eras on the timeline

The bar is divided into eight bands, newest first on the home screen and oldest first left-to-right on the timeline itself. Each band has its own colour, its own scene, and its own approach to time:

• Big Bang — the first nine billion years: light, stars and galaxies.
• Young Earth — a molten planet cools, oceans form, life switches on.
• Dinosaurs — the great age of animals, from reefs to the asteroid.
• Ice Age — the long age of mammals, including the famous cold spells.
• Stone Age — fire, tools, cave art and the long walk out of Africa.
• Ancient World — first cities, writing, codes and empires.
• Middle Ages — castles, cathedrals, caravans and slow trade.
• Modern Era — print, revolutions, engines and screens.

The full era guide explains what is in each one and why the game's boundaries are set where they are.

Why a timeline beats a list of dates

A list of dates tests memory. A timeline tests something more useful: the relative position of things. Most of the interesting mistakes in history are scale mistakes — thinking the dinosaurs and the pyramids were neighbours, or that the printing press and the internet are centuries apart in the way they feel. Once you have dragged a handle from the Big Bang to today a few dozen times, those mistakes stop happening.

It is also simply a better game shape. A timeline gives every moment a visible home; the reveal pins the truth onto a bar you were just manipulating, so the lesson lands in context rather than as a number. That immediate correction is why the daily format works: five small corrections a day, and your mental map improves without feeling like homework.

Timeline tips

Zoom before you commit. Read the era colour, not just the year. Remember that the game's era boundaries are play brackets, not strict history: the “Ice Age” band starts with the extinction of the non-avian dinosaurs, and the “Dinosaurs” band starts before the dinosaurs existed. That is deliberate, because it gives each era a similar share of the bar. If a moment lands near a boundary, your range can straddle two eras and still be correct.

When you are ready, learn the rules, read the strategy guide, and play the Gazillion game to put five moments on the timeline yourself.