The Tanis fossil site in North Dakota formed within an hour of the Chicxulub asteroid impact. It was buried in mud so quickly that it is a time capsule.
Fossilized pollen there matches a tree that still grows today and flowers in early June.
Coral eggs there are the same as a species that spawns on the night of the full moon.
Day-lilies found there were yet to wither.
So in the Hebrew calendar, we know the asteroid hit around 7 pm on 15 Sivan, but we have no idea what year.
Obligatory _Caveman_ (1981) reference: https://youtu.be/fwouilUDsRo
Video description: Opening credits of the movie _Caveman_, 9 seconds long. Against a busy background, the captions:
1 Zillion B.C.
The Tanis fossil site is real and it contains some amazingly well-preserved fossils. https://en.m.wikipedia.org/wiki/Tanis_(fossil_site)
I believe the bit about the pollen in June is true. The rest is made up. So far.
Consider this a friendly, local pub. Make yourself at home, bring your friends, have a good time! Meet new people, have a laugh, enjoy the ambience, and the Oxford commas.