Add to the following list highlighting significant events in Earth's
history. You must end up with a total of 15 events.
1. 4.6 billion years ago:
Earth was created
2. 4.5 billion years ago:
Earth’s moon was created
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
