Category
page 1Chronology
millennium
A millennium () is a period of one thousand years, one hundred decades, or ten centuries, It is also sometimes called a kiloannum (ka) or kiloyear (ky).
Anno Domini
Western calendar era
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chronology
thumb|222px|Joseph Scaliger's De emendatione temporum (1583) began the modern science of chronology
Common Era
modern calendar era
year zero
year that does not exist in the Anno Domini / Common Era year-numbering system

ab urbe condita
year-numbering system
Julian day
days since the beginning of the Julian Period
era
An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth.

timeline
thumb
|Joseph Priestley's [[A New Chart of History, 1765]]
thumb|right|The bronze timeline "Fifteen meters of History" with background information board, Örebro, [[Sweden]]
A timeline is a list of events displayed in chronological order. It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events.
epoch
In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured.
Helladic period
dating system used in archaeology and art history
glottochronology
Glottochronology (from Attic Greek 'tongue, language' and 'time') is the part of lexicostatistics which involves comparative linguistics and deals with the chronological relationship between languages.
chronological dating
method mostly used in identification of various fossils which are about millions and billions years old
calendar era
period of time elapsed since one epoch of a calendar and, if it exists, before the next one
Egyptian chronology
timeline
phantom time conspiracy theory
conspiracy theory that Otto Ⅲ and Pope Sylvester Ⅱ fabricated the Carolingian period (614–911)
chronology of the ancient Near East
chronology article
astronomical year numbering
method of year numbering
Venus tablet of Ammisaduqa
Ancient Neo-Assyrian record of astronomical observations of Venus
Mesoamerican Long Count calendar
non-repeating base-20 and base-18 calendar used by several pre-Columbian Mesoamerican cultures, including the Maya
Assyrian eclipse
solar eclipse
Gospel harmony
compilation of the canonical gospels of the Christian New Testament into a single account
Sothic cycle
1460 year calendar cycle of ancient Egypt
Ussher chronology
17th-century chronology of the history of the world
Anno Lucis
dating system used in Freemasonry
chronology of the Bible
a topic including time spans mentioned in the bible and meaning derived from these time spans
chronology of Jesus
timeline of the life of Jesus
date of birth of Jesus
unstated date
Era of Martyrs
method of numbering years used by the Church of Alexandria beginning in the 4th century AD and by the Coptic Orthodox Church of Alexandria from the 5th century
Spanish era
Calendar era of Iberian peninsula

limmu
thumb|Detail. Stele of Shamsh-bel-usur, limmu of the years 864 and 851 BCE. From Assur, Iraq. Pergamon Museum
Older Dryas
stadial period
Xia–Shang–Zhou Chronology Project
a multi-disciplinary project commissioned by the People's Republic of China in 1996
orders of temporal magnitude
decimal quantities of a base unit of time
Oldest Dryas
climatic period
list of timelines
Wikimedia list article
Blytt–Sernander system
series of north European climatic periods
Dating the Bible
commonly accepted dates or ranges of dates for composition of the Hebrew Bible, the Deuterocanonical books and the New Testament
Mursili's eclipse
solar eclipse mentioned in a text dating to the reign of Mursili II that could be of great importance for the chronology of the Hittite Empire
chronology of William Shakespeare's plays
possible order of composition of Shakespeare's plays
Astronomical chronology
Method of determining the age of events or artifacts
Chronology of Soviet secret police agencies
Wikimedia list article
pollen zone
type of zone
Beda Venerabilis' Easter cycle
bya
bya or b.y.a. is an abbreviation for "billion years ago". It is commonly used as a unit of time to denote length of time before the present in 109 years. This initialism is often used in the sciences of astronomy, geology, and paleontology.
Vedic-Puranic chronology
a timeline of Hindu history based on the Mahabharata, the Ramayana and the Puranas.
Missing years
discrepancy between the rabbinic and academic datings for the destruction of the First Temple