Silver Class were getting to grips with the History of the World today, mapping it all out on the Hall floor. This gave them a better understanding of just how old the world really is, and how little time human beings have been here. If Earth's history were condensed into 24 hours, life would have appeared at 4.00am, land plants at 9.52pm, dinosaur extinction at 11.41pm, and human history would have begun at 11.58:43pm. Haven’t we done a lot in 1 minute and 17 seconds!