What single scientific fact proves evolution is true, and proves creationism false?

Just the documentations reference please. You know the once and for all proof.What single scientific fact proves evolution is true, and proves creationism false?
There are none that cannot be exhaustively refuted. This is why religions are still, by far the most powerful belief systems in the world, especially when combined. No absolute proof for evolution. And that comes from scientist themselves! Every one else is just hoping and/ or ignorant!What single scientific fact proves evolution is true, and proves creationism false?
You need to define your terms first. For example, when you say ';creationism'; are you referring to a literal interpretation of genesis? If so then how are you defining a day, as in the world was created in 6. Is it a 24 hour day or is each day longer, even millions of year?
There is no one single scientific fact that proves evolution and you know that! There is no once-and-for-all proof of anything! Even gravity doesn't exist under certain circumstances. This shows how little you know and how much you think you know.
The diversity of life on Earth is such that you cannot have ever fit two of each ';kind'; into the volume of the ark, even if you allow them to evolve from genus bases to the current forms in 4,500 years.