Originally Posted by XSV

I think you are slightly off on your estimate here... several sources online for this.

Modern geologists consider the age of the Earth to be around 4.567 billion years (4.567×109 years).

http://en.wikipedia.org/wiki/Age_of_the_Earth

Human Species traces back about 200,000 years, modern man around 10-40000 years depending on the source and criteria.

http://en.wikipedia.org/wiki/Human