What invention do you think made the biggest impact on human civilization?

[sas]

What invention do you think made the biggest impact on human civilization?

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I propose the toilet

[The Mad Monk]

Refrigeration.

[loinburger]

Fire

[sas]

Originally posted by loinburger
Fire

I dont think Fire is a human invention

[Kramsib]

I was about to say the hammer, because hammers can have a great impact on human beings, but, after seeing your proposal, << the toilet >> I changed my mind, of course, if someone hits you with a toilet he can make a big impact on you.

[Provost Harrison]

Sliced bread

[Sandman]

Cities.

[Nostromo]

the credit card

[Ethelred]

Since civilization was mentioned in the question I think agriculture is the key thing. No agriculture means civilization would be unlikely. We would still be wondering around as herders or hunter-gatherers.

[chequita guevara]

Agriculture, writing, sanitation, antibiotics in that order

[loinburger]

The mousetrap. People have tried, but nobody has succeeded in building a better mousetrap.

[Skanky Burns]

Alcohol.

[Gangerolf]

I propose the toilet

asians don't use toilets. they **** in holes in the floor, standing up.

well the japanese have som really fancy-ass(!) toilets though.

[JohnT]

Che got the first two correct, but I would put the printing press at #3 and the scientific method at #4.

[OneFootInTheGrave]

condom