Chronology in the context of "Uruk"

A chronicle (Latin: chronica, from Greek χρονικά chroniká, from χρόνος, chrónos – "time") is a historical account of events arranged in chronological order, as in a timeline. Typically, equal weight is given for historically important events and local events, the purpose being the recording of events that occurred, seen from the perspective of the chronicler. A chronicle which traces world history is a universal chronicle. This is in contrast to a narrative or history, in which an author chooses events to interpret and analyze and excludes those the author does not consider important or relevant.

The information sources for chronicles vary. Some are written from the chronicler's direct knowledge, others from witnesses or participants in events, still others are accounts passed down from generation to generation by oral tradition. Some used written material, such as charters, letters, and earlier chronicles. Still others are tales of unknown origin that have mythical status. Copyists also changed chronicles in creative copying, making corrections or in updating or continuing a chronicle with information not available to the original chronicler. Determining the reliability of particular chronicles is important to historians.

Eratosthenes of Cyrene (/ɛrəˈtɒsθəniːz/; Ancient Greek: Ἐρατοσθένης [eratostʰénɛːs]; c. 276 BC – c. 195/194 BC) was an Ancient Greek philosopher, polymath and scholar. He was known as a mathematician, geographer, poet, astronomer, and music theorist. Eratosthenes became the chief librarian at the Library of Alexandria. His work was the precursor to the modern discipline of geography, and he introduced some of its terminology, coining the terms geography and geographer.

He is best remembered as the first known person to calculate the Earth's circumference. He was also the first to calculate Earth's axial tilt, which similarly proved to have remarkable accuracy. He created the first global projection of the world incorporating parallels and meridians based on the available geographic knowledge of his era. Eratosthenes was the founder of scientific chronology; he used Egyptian and Persian records to estimate the dates of the main events of the Trojan War, dating the sack of Troy to 1184 BC. In number theory, he introduced the sieve of Eratosthenes, an efficient method of identifying prime numbers and composite numbers.

An anachronism (from the Greek ἀνά ana, 'against' and χρόνος khronos, 'time') is a chronological inconsistency in some arrangement, especially a juxtaposition of people, events, objects, language terms and customs from different time periods. The most common type of anachronism is an object misplaced in time, but it may be a verbal expression, a technology, a philosophical idea, a musical style, a material, a plant or animal, a custom, or anything else associated with a particular period that is placed outside its proper temporal domain.

An anachronism may be either intentional or unintentional. Intentional anachronisms may be introduced into a literary or artistic work to help a contemporary audience engage more readily with a historical period. Anachronism can also be used intentionally for purposes of rhetoric, propaganda, comedy, or shock. Unintentional anachronisms may occur when a writer, artist, or performer is unaware of differences in technology, terminology and language, customs and attitudes, or even fashions between different historical periods and eras.

The Conventional Egyptian chronology reflects the broad scholarly consensus about the outline and many details of the chronology of Ancient Egypt. It places the beginning of the Old Kingdom in the 27th century BC, the beginning of the Middle Kingdom in the 21st century BC and the beginning of the New Kingdom in the mid-16th century BC.

Disagreements remain within this consensus, and various chronologies diverge by about 300 years for the Early Dynastic Period, up to 30 years in the New Kingdom, and a few years in the Late Period.

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.

Timelines can use any suitable scale representing time, suiting the subject and data; many use a linear scale, in which a unit of distance is equal to a set amount of time. This timescale is dependent on the events in the timeline. A timeline of evolution can be over millions of years, whereas a timeline for the day of the September 11 attacks can take place over minutes, and that of an explosion over milliseconds. While many timelines use a linear timescale—especially where very large or small timespans are relevant -- logarithmic timelines entail a logarithmic scale of time; some "hurry up and wait" chronologies are depicted with zoom lens metaphors.

Annals (Latin: annāles, from annus, "year") are a concise historical record in which events are arranged chronologically, year by year, although the term is also used loosely for any historical record.

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.

The moment of epoch is usually decided by congruity, or by following conventions understood from the epoch in question. The epoch moment or date is usually defined from a specific, clear event of change, an epoch event. In a more gradual change, a deciding moment is chosen when the epoch criterion was reached.

Change and continuity is a classic dichotomy within the fields of history, historical sociology, and the social sciences more broadly. The question of change and continuity is considered a classic discussion in the study of historical developments. The dichotomy is used to discuss and evaluate the extent to which a historical development or event represents a decisive historical change or whether a situation remains largely unchanged. A good example of this discussion is the question of how much the Peace of Westphalia in 1648 represents an important change in European history. In a similar vein, historian Richard Kirkendall once questioned whether FDR's New Deal represented "a radical innovation or a continuation of earlier themes in American life?" and posed the question of whether "historical interpretations of the New Deal [should] stress change or emphasize continuity?" The issue here is if the New Deal marks something radically new (change) in US history or if the New Deal can be understood as a continuation (continuity) of tendencies in American history that were in place well before the 1930.

The dichotomy is important in relation to constructing, discussing, and evaluating historical periodizations. In terms of creating and discussing periodization (e.g. the Enlightenment or the Victorian Era,) the dichotomy can be used to assess when a period can be said to start and end, thus making the dichotomy important in relation to understanding historical chronology. Economic historian Alexander Gerschenkron has taken issue with the dichotomy, arguing that continuity "appears to mean no more than absence of change, i.e. stability." German historian Reinhart Koselleck, however, has been said to challenge this dichotomy.

This timeline of cosmological theories and discoveries is a chronological record of the development of humanity's understanding of the cosmos over the last two-plus millennia. Modern cosmological ideas follow the development of the scientific discipline of physical cosmology.

For millennia, what today is known to be the Solar System was regarded as the contents of the "whole universe", so advances in the knowledge of both mostly paralleled. Clear distinction was not made until circa mid-17th century. See Timeline of Solar System astronomy for further details on this side.