concrete, or the key stone (stone in middle of an arch construction)
Gunpowder
This is very much a matter of opinion. Arguably the wheel is the most important
The most important invention of this century will be the discovery of the cure of HIV/AIDS. This disease has no cure and has claimed the lives of very many people.
The Printing Press
17
laptop portability is the most important invention
Alfred Nobel's super important invention was the Nobel Peace Prize which was known since 1833 until now.
the most important invention was the plow
Arabic numerals, which are much more practical than the Roman system.
While GPS is helpful it is not the most important invention of all time. Some would say computers are the most important invention of all time. However what powers both of these things? Electricity seems to be the most important invention of all time.
The most important invention in world war 2 was the atomic bomb.
The most important invention was gunpowder
The most important invention of the Sumerian's was Irrigation. Irrigation is how the Sumerian's led their water through pipes, etc.
THE corsett?
The Wheel
The invention of the Firearm
1. the invention of computers 2. the invention of human kind 3. the invention of inventing!