When Did That Happen? is a non-fiction history virtual book for 9–12 year olds. It’s a science-based logarithmic timeline of the history of the Earth, from 4.5 billion years ago until 2050. There are six main chapters; each one is five feet long. Click the View the Timeline button and scroll horizontally to see the whole thing.
This is still a work in progress: many events and people are still being added. If you have an idea for what to include, use the Contact Us button.
The last chapter has room for you to add your own history to the page: print it out and use your best art skills to add events from your own life!