What is the single most important event in all of human history?

How far back do you want to go? Written historical records begin around 7,000 years ago, but modern humans (Homo sapiens sapiens) have been around for at least 200,000 years. If you're looking at recorded human history, then I'd say it's the development of agriculture (Google "Neolithic Revolution") because it led to human population growth, cities, and civilization. If you're looking at *all* of human history, then it's the discovery of fire.

Someone else here said the invention of the wheel, but the highly advanced indigenous civilizations of the Americas got along just fine without the wheel until the Europeans came around.

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Actually, Carl Sagan makes a great argument for writing: http://science.memebase.com/2012/05/16/funny-scien...

I guess it depends on how you measure "important." Is what matters most an event that leads to technological development? To cultural development? To sheer numbers of humans? Does it matter to your question that writing wouldn't have been developed if agriculture hadn't been developed? Interesting things to think about...

this is form of a loaded question with the addition of religion. some could say the start of Christ yet others could say the start of Muhammad has replaced human history extensively. the two figures are of large cultural impact, yet i could think of that exterior of religion the discovery of an agrarian society has propelled humanity to all areas of the international.

I'm going to give a personal, SUBJECTIVE answer, so please be gentle with the thumbs-down people.

Some would say Christ.

Some would say Mecca.

Some would say the invention of the lightbulb.

I will say the events @ Area 51.

Technological advances SURGED after that.

I wonder why? No, I don't, actually.

I'd say the discovery of farming. It enabled man, for the first time, to do something other than worry about finding food all day. It enabled everything else that has come since.

When Humans became humans. When humans invented war. When humans got AIDS from a Monkey. When Humans were freindly to eachother. When Humans invented Electricity.

When the world was born

I think, Birth of a First Human or the Formation of the HUMAN.

The surreptitious munching of the forbidden fruit.

ie The genesis of ego and abstraction.

whatever point in our history that we started to separate from nature. when we took our evolution into our hands and walked forth into the future believing ourselves above all other animals.

One way or another, our first instance of creation, in whatever form, is obviously the winner.