There are two techniques for dating in archaeological sites: relative and absolute dating.Relative dating stems from the idea that something is younger or older relative to something else.
This principle presumes that the oldest layer of a stratigraphic sequence will be on the bottom and the most recent, or youngest, will be on the top.
The earliest-known hominids in East Africa are often found in very specific stratigraphic contexts that have implications for their relative dating.
The Greeks consider the first Olympic Games as the beginning or 776 BC.
The Muslims count the Prophet’s departure from Mecca, or the Hegira, as their beginning at AD 662.
Cultural seriations are based on typologies, in which artifacts that are numerous across a wide variety of sites and over time, like pottery or stone tools.
If archaeologists know how pottery styles, glazes, and techniques have changed over time they can date sites based on the ratio of different kinds of pottery.According to the Dictionary of Anthropology, the word chronology means the science of computing dates or treaties showing arrangement of events with dates.In other words, Chronology is the arrangement of events, or the materials which represent them, in the order of their occurrence in time.They are engaged in defining the stages of hominid evolution and their artifactual record, and the assignment of a chronology to these stages.Chronology is the science of measuring time and ordering of the things in time.blood typing system in which there are 4 distinct types: A, B, AB, and O.