Example of relative dating
In the example above, Sandstone B is younger than Sandstone A.
Because relative dating doesn't give you an absolute age, errors are much less common in comparison to absolute dating.
For example, entering the following sequence of letters, B, C, A, B, E, F, G, and D, would signify that you thought that region was tilted first and the time gap formed most recently.
The intervening events would have occured in the order listed.
Stratigraphy is the oldest of the relative dating methods that archaeologists use to date things.