1. If the World Wide Web was a student, It’d probably still be in college.
2. Less than a century ago, this camera was state of the art.
6. Europeans started printing about 50 years before Columbus landed in America.
Before 1439, everything was written by hand.
7. The Chinese written language was standardized in the second century BC.
8. The Great Pyramid of Giza was built about 4500 years ago.
Roman leader Julius Caesar lived closer to today than he did to the construction of the pyramid.
(By about 400 years.)
9. Humans and mastadons co-existed for several thousand years
Mastadons went extinct about 10,000 years ago.