Bushassic Era: 26.09%
When Bill Watterson stopped drawing Calvin and Hobbes: 23.29%
The world pre-Internet: 13.32%
Clintonian Era: 12.77%
Puberty: 7.71%
455-1000 AD: 7.71%
Time before First Contact/Invention of Warp Drive : 7.17%
Age of the Sith: 1.95%