A billion is a difficult number to comprehend but one advertising agency did a good job of putting that figure into some perspective in one of it's releases:
A. A billion seconds ago it was 1959..
B. A billion minutes ago Jesus was alive.
C. A billion hours ago our ancestors were living in the Stone Age.
D. A billion days ago no-one walked on the earth on two feet.
E. A billion Pounds ago was only 13 hours and 12 minutes, At the rate our government is currently spending it.....
Food for thought!