Chronological methods 8 radiocarbon dating
Around 55, years later, so much 14C has decayed that what remains can no longer be measured.
In 5, years half of the 14C in a sample will decay see figure 1, below.
Chronology is the science of locating historical events in time.
is the science of arranging events in their order of occurrence in time.
Consider, for example, the use of a timeline or sequence of events.
Dionysius Exiguus (about the year 500) was the founder of that era, which is nowadays the most widespread dating system on earth.
An epoch is the date (year usually) when an era begins. It was used to identify the Roman year by a few Roman historians.