It has a very bright history, winning of finals and semi-finals.
The regular order of occurrence of fossils in rock layers was discovered around or William Smith.
Prior to the discovery of radiometric dating in the early 20th century, which provided a means of absolute datingarchaeologists and geologists used relative dating to determine ages of materials.
Though relative dating can only determine the sequential order in which a series of events occurred, not when they occurred, it remains a useful technique.
Methods for relative dating were developed when geology first emerged as a natural science in the 18th century.
Geologists still use the following principles today as a means to provide information about geologic history and the timing of geologic events.