Clock - 100 A.D.
The first one, like the computer, was six stories tall. It weighed over 500 tons, and had to be wound by a team of horses. Forty men were killed during its invention. Don’t ask about the first watch.

Umbrella - 50 B.C.
Before they could invent the leather jacket, makeup, and dress slacks, the Chinese had to invent the umbrella. Once it was accomplished, the Golden Age of Fashion (50 B.C. - 400 A.D.) flourished.

Zero - 670 B.C.
Mathematicians were tired of expressing nothing as an elaborate interpretive dance, which took over 2 days to perform. Eventually, they just drew a circle to represent the lack of amount.

Comet - 2300 B.C.
Not satisfied with the static appearance of stars, Chinese scientists managed to propel one across the sky, but could not control it. We used to have two moons, but one was destroyed by an errant comet prototype.

Unicorn - 1470 B.C.
This horned equine was invented by a king for his young daughter’s 4th birthday. After rejecting hundreds of ponies (which were slaughtered), the girl suggested a horn, and as all bratty girls do, she got her wish.