Evidence gathered after they go through the process of scientific experimentation. Even with all this evidence, can you still conclusively prove things that happened far before human consciousness even existed?
Can you prove you exist? Everything is always going to require that much "faith"
Everything that happened later than 2000 years is till up to a lot of debate because there is no way for certain to put together an entire history based off of some cave paintings and a few sparse bones here and there.
Well this makes it obvious you have no idea the amount of overwhelming evidence there is. I also love how you choose just about the age Jesus Christ was supposedly born.
That's like me saying that Dinosaurs probably ate candy bars because we found a candy wrapper and a few dinosaur bones in close proximity.
No, it's like me saying a few million years into the future "humans probably cut down wood for their use because we've found a camp of human bones (which we've dated to be about 1,002,00 years old) beside an area full of fossilised tree stumps, most of which have been dated to around the same age. Therefore it would be reasonable to assume that humans cut down trees, although I may be proven wrong.
It will later be proven wrong, but a lot of things we assumed about dinosaurs have been proven wrong even when we had all this evidence right in front of our noses.
Of course your theory will be proven wrong; you based it on a completely stupid collection of facts. If you'd dated the candy wrapper somehow and then found bits of said candy in their feces or their stomachs when they died THEN you might have grounds to make such a prediction. Your example would be like me saying pavement produces streetlamps because they're always found on pavement. Furthermore; being able to be proven wrong is not a flaw.
Evidence and theory and facts do not make scientific fact. It is the gathering of like-minded people who all collectively believe in one thing to make it into something real for everyone else. Sounds a bit like a religion to me.
I'm not surprised you're religious if you consider a lot of people believing something fact.