The following are the different events you will need to research and put on your time line:

1) The Big Bang

2) Stars and galaxies start to form

3) The Sun forms

4) The Earth forms

5) Earliest life on Earth

6) Pangaea forms

7) Earliest dinosaurs

8) Dinosaurs are extinct

9) First Homo sapiens

10) First computers

11) Today

12) First human flight