Cross-dating of sites, comparing geologic strata at one site with another location and extrapolating the relative ages in that manner, is still an important dating strategy used today, primarily when sites are far too old for absolute dates to have much meaning.
The scholar most associated with the rules of stratigraphy (or law of superposition) is probably the geologist Charles Lyell.
The various methods of relative dating are; This method depends on the common observation that the height of the habitational area increases as the people continue to live at the same place.
The deposit thus occurring forms layers depending on the nature of the material brought in by the people inhabiting the area.
and which give the result in calendar years before the present, or B. Most of these techniques produce results with a techniques do not.
The basis for stratigraphy seems quite intuitive today, but its applications were no less than earth-shattering to archaeological theory.
For example, JJA Worsaae used this law to prove the Three Age System.
Relative dating includes methods that rely on the analysis of comparative data or the context (eg, geological, regional, cultural) in which the object one wishes to date is found.
This approach helps to order events chronologically but it does not provide the absolute age of an object expressed in years.