What's the greatest invention of all time?
Mining.
printing press
The game of Hockey.
Calculator, would've never gotten through math without it.
sail
There are so many....
Matches, refrigerator, many inventions for medicine, World Wide Web, camera, toilet paper, stereophonic sound recording, sonar, Morse code, plastic, glass, fuel cell, eyeglasses, clock, battery, the alphabet, and many many more.
Early Retirement.
Telephone.
i would have to say agree that it was the printing press because there was no practical way to communicate to the masses before that
The twist-off bottle cap.
The printing press makes the beer labels.
We phone people to come for beer.
The twist off bottle cap is to make beer more accessable.
Early retirement is to drink beer longer.
We drink beer while watching hockey.
It's all for beer man. Or is it beer for all? Hic.
It's the wheel....take away the wheel and we would have nothing.
Writing.