the big bang theory...

Our whole universe was in a hot dense state,
Then nearly fourteen billion years ago expansion started, wait...
The Earth began to cool,
The autotrophs began to drool,
Neanderthals developed tools,
We built a wall (we built the pyramids),
Math, science, history, unravelling the mysteries,
That all started with the big bang!

[ The History Of Everything - Barenaked Ladies ]