Ancient world
Think of Rome, early empires and classical societies. Dates can be less precise the further back you travel.
THE TIMELINE
A map of the eras
Before guessing a precise year, place the clue on a broader timeline.
Put it into practice →Medieval world
Kingdoms, trade routes, universities and major changes across Europe, Asia, Africa and the Americas.
Early modern world
Oceanic exploration, printing, scientific exchange and the beginnings of industrial change.
Industrial world
Railways, electrical systems, mass communication and the two world wars.
Contemporary world
Space exploration, computing, global media and events within living memory.
These broad study periods are guides, not universal boundaries. Historians use different periodizations across regions.