In particular, we have a tree ring calendar that goes back as much as 11000 years in some places: .Yes, you read that right: the tree-ring calendar goes back well before 4004 BC.It's not that there are 11000 year old trees, but there have been young trees growing happily next to old trees for that long getting the same weather-related patterns in their rings, by which we can piece together a time line.So beyond reasonable doubt, no creation event and no global flood.Anything that was once alive or that was produced by a living thing can be dated by using the radiocarbon method of dating.
And on the basis of these methods, many scientists announce that the Bible's record of history is not accurate.Carbon dating has a well-known list of foibles including the following:* The accuracy falls off sharply beyond a few half-lives.* It crucially relies on the C14 getting expeditiously from the atmosphere (where it's generated) to plants to things that eat plants.So if there's fossil carbon involved, which has sat around in the oceans or in rocks for many half-lives, that's going to give spuriously long dates.* The rate of production in the atmosphere has varied slightly with solar cycles.* The rate of production in the atmosphere has varied substantially in the last seventy years due to nuclear testing.* Back in the bad old days when you had to detect the C14 by waiting for some of it to decay and detecting the radiation, you had to get large sample sizes to get good statistics because only a tiny fraction of it would decay in a reasonable time.(Nowadays you can count the C14 atoms directly.)None of this is of the slightest solace to young-earth creationists, or at least wouldn't be if they weren't uniformly ignorant and/or outright dishonest.All the gotchas are well-known, and routinely allowed for.