Science
Discoveries: what people found out about the world, from the shape of the Earth and gravity to DNA, the Big Bang, and the first picture of a black hole.
167 discoveries →← Learn
Timelines
Four timelines that fit together, each one telling a different part of the story: what people found out, what they made, who they were, and what happened before there were people.
Ancient times to today
The first stone tools to today
Inventions
The things people made: fire, farming, writing, paper, the printing press, the steam engine, the airplane, the computer, and the Web.
104 inventions →
Ancient times to today
Scientists
The people behind the discoveries, from Aryabhata and Ibn al-Haytham to Marie Curie and Ramanujan, and who else was alive at the same time.
117 scientists →
13.8 billion years ago to the last Ice Age
Deep Time
The universe and the Earth before people: the Big Bang, the first stars, the first life, the dinosaurs, the Himalaya rising, and the first humans.
44 moments →How they fit together
Each thing is on one timeline only. A discovery (like gravity or DNA) is on Science, a thing people made (like the printing press or the airplane) is on Inventions, and the person behind it is on Scientists. Deep Time ends where the other three begin.