Since there are practical limits to the age range of the method, most samples must be younger than 50,000 years and older than 100 years.

Is there a limit to C 14 dating?

Theoretically we can report dates as young as a single year, but the margin for error may be greater than the date reported. On the other hand, if the sample is too old, not enough C-14 may remain for an accurate measurement. This means that the upper limit of C-14 dating is currently around 50,000 years ago.