SCIENTISTS estimate that our planet is 4,5 billion years old and believe that humans have only existed for the past 2,5 million years. This means our time on Earth is a tiny fraction of a very long history, essentially making us the newcomers in the neighbourhood.
Nevertheless, in the few million years human beings have been on Earth, we’ve made significant progress in how we live and what we can do. It’s crazy to think that at one point in time the wheel was the latest technology!
The time before we began to write down our knowledge is known as the prehistoric period. It’s divided into three
