It responds to the comment "I only clicked on the article because I thought it was the age of the samples too." Age is "The length of time that a person or thing has existed." AD and BC are both absolute values from a zero point, both positive ("1 BC is year 0, 45 BC is year −44" [0]). A relative chronological dating by some phenomenological method such as radiocarbon or thermolumenescence might establish a negative date relative to some other known benchmark [1].
How might something dated from the future be found? I'm not certain, but maybe it has to do with aliens that are all the rage nowadays.
If I were 12 years old, I would have been born 12 years ago.
2023
- 12
----
2011
If I were -12 years old, I would be born 12 years from now.
How might something dated from the future be found? I'm not certain, but maybe it has to do with aliens that are all the rage nowadays.
If I were 12 years old, I would have been born 12 years ago.
If I were -12 years old, I would be born 12 years from now. 0. https://en.wikipedia.org/wiki/Anno_Domini1. https://en.wikipedia.org/wiki/Chronological_dating