Chronology is the science of locating events in time. A chronology may be either relative -- that is, locating related events relative to each other -- or absolute -- locating these events to specific dates in a Chronological Era. An arrangement of events, with absolute dates, from either earliest to latest or the reverse, is also called a chronology or a timeline. (See also Chronicle.)
During the 20th century, many previously accepted conclusions of historical chronology were questioned, both by the introduction of new techniques, by new discoveries, and by claims that not all was well even in the original analysis of existing material. Thus at the start of the 21st century, the chronologies of ancient civilisations in particular were in a state of some controversy. For example, Russian member of Academy of sciences Anatoly Timofeevich Fomenko has been very popular lately in Russia with his theory of new chronology of Russia and Europe.
The chronological aspect of subjects may be expressed in a variety of ways depending on the patterns that have evolved in the various fields.
Chronological subdivisions may appear after several different types of headings or subdivisions in the subject heading string.
Do not assign chronological subdivisions where they have not been established or are not covered by free-floating provisions, for example, after certain subdivisions such as –Description and travel.
An arrangement of events, from either earliest to latest or the reverse, is also called a chronology or a timeline.
A chronology may be either relative -- that is, locating related events relative to each other -- or absolute -- locating these events to specific dates in a Chronological Era.
Bayesian analysis has recently started to be routinely applied in the analysis of chronological information, including radiocarbon-derived dates,