A millennium (plural millennia or millenniums) is a period equal to 1000 years,[1] also called kiloyears. It derives from the Latin mille, thousand, and annus, year. It is often, but not always, related to a particular dating system.

Sometimes, it is used specifically for periods of a thousand years that begin at the starting point (initial reference point) of the calendar in consideration (typically the year "1"), or in later years that are whole number multiples of a thousand years after it. The term can also refer to an interval of time beginning on any date. Frequently in the latter case (and sometimes also in the former) it may have religious or theological implications (see millenarianism).

Counting years

There are two methods of counting years: current years (the count begins at the epoch) and elapsed years (the count is of completed years since the epoch).

The original method of counting years was ordinal, whether 1st year AD or regnal 10th year of King Henry VIII. This ordinal numbering is still used in the names of the millennia and centuries, for example the 1st millennium or the 10th century, and sometimes in the names of decades, e.g., 1st decade of the 11th century.

The main issues arise from the content of the various year ranges. Similar issues affect the contents of centuries. Decades are not subject to ambiguity, as they are named according to their leading numbers: for example, the decade called "the 1990s" by its naming does not include 2000.

For those following ordinal year names:

  • 2001–2100 (inclusive) as the current century
  • 2001–3000 (inclusive) as the current millennium

For those who are influenced by the leading digit:

  • 2000–2099 (inclusive) as the current century
  • 2000–2999 (inclusive) as the current millennium

Debate over millennium celebrations

There are two viewpoints about how millennia should be thought of in practice. One viewpoint relies on the formal operation of the calendar, while the other appeals to popular culture. Stephen Jay Gould argued that the choice is arbitrary, and since the question revolves around rules made by people, rather than a natural phenomenon that is subject to experimental measurement, the matter cannot be resolved.[2]

The ISO 8601, employed in a number of contexts, uses the astronomical calendar, in which year counting starts at 0. Thus, when using this calendar, the millennium starts at x000 and ends at x999. There was a popular debate leading up to the celebrations of the year 2000 as to whether the beginning of that year should be understood (and celebrated) as the beginning of a new millennium. Historically, there has been debate around the turn of previous decades, centuries, and millennia.

The issue is tied to the convention of using ordinal numbers to count millennia (as in "the third millennium"), as opposed to "the two thousands", which is unambiguous as it does not depend on which year counting starts. The first convention is common in English speaking countries, but the latter is favored in for example Sweden (tvåtusentalet, which translates literally as the two thousands period).

Viewpoint 1: X001–Y000

Those holding that the arrival of the new millennium should be celebrated in the transition from 2000 to 2001 (i.e., December 31, 2000 to January 1, 2001), argued that because the Gregorian calendar has no year zero, the millennia should be counted from 1 AD. Thus the first period of one thousand complete years runs from the beginning of 1 AD to the end of 1000 AD, and the beginning of the second millennium took place at the beginning of 1001.

2 BC 1 BC 1 AD 2 3 4 5 ... 998 999 1000 1001 1002 1003 ... 1998 1999 2000 2001 2002 2003 ... 2998 2999 3000 3001 3002 3003 ...
First one thousand years (millennium) Second millennium Third millennium Fourth millennium

Arthur C. Clarke gave this analogy (from a statement received by Reuters): "If the scale on your grocer's weighing machine began at 1 instead of 0, would you be happy when he claimed he'd sold you 10 kg of tea?" This statement illustrates the common confusion about the calendar.

If one counts from the beginning of AD 1 to the ending of AD 1000, one would have counted 1000 years. The next 1000 years (millennium) would begin on the first day of 1001. So the calendar has not 'cheated' anyone out of a year. Clarke made reference to this viewpoint in his book 3001: The Final Odyssey referring to the Millennium Celebrations on December 31, 2000. In other words, the argument is based on the fact that the last year of the first two thousand years in the Gregorian calendar was 2000, not 1999.

Viewpoint 2: X000–X999

The "year 2000" has also been a popular phrase referring to an often utopian future, or a year when stories in such a future were set, adding to its cultural significance. There was also media and public interest in the Y2K bug. People liked to compared their odometer as a reason to celebrate the new millennium which goes from 1999 to 2000. Thus, the populist argument was that the new millennium should begin when the zeroes "rolled over" to 2000, i.e., the day after December 31, 1999. Some people[3] thought that the change of the hundreds digit in the year number, and the zeros rolling over, created a sense that a new century had begun.

This is similar to the common demarcation of decades by their most significant digits, e.g., naming the period 1980 to 1989 as the 1980s or "the eighties". Similarly, it would be valid to celebrate the year 2000 as a cultural event in its own right, and name the period 2000 to 2999 would be "the 2000s". In other words, the time period between 1 and 999 (999 years only) would be called the "0s" and the period between 1000 and 1999 would be the "1000s".

Illustration of years with a 99–00 demarcation using 0 (ISO 8601)
 0   1   2   3   4   5   ...   998   999  1000 1001 1002 ... 1998 1999 2000 2001 2002 ... 2998 2999 3000 3001 3002
First millennium (1000 years) Second millennium Third millennium fourth millennium
Illustration of years with a 99–00 demarcation (starting AD 1)
1 BC 1 AD  2   3   4   5   ...  998 999 1000 1001 1002 ... 1998 1999 2000 2001 2002 ... 2998 2999 3000 3001 3002
First millennium Second millennium Third millennium Fourth millennium

Popular approach

The popular[4] approach was to treat the end of 1999 as the end of a millennium and to hold millennium celebrations at midnight between December 31, 1999 and January 1, 2000, as per viewpoint 2. The cultural and psychological significance of the events listed above combined to cause celebrations to be observed one year earlier than the formal Gregorian date.[4] This does not establish that insistence on the formal Gregorian date is "incorrect".

Some event organisers hedged their bets by calling their 1999 celebrations things like "Click" referring to the odometer-like rolling over of the nines to zeros. A second approach was to adopt two different views on the millennium problem and celebrate the new millennium twice.

Stephen Jay Gould, in his essay Dousing Diminutive Dennis' Debate (or DDDD = 2000) (Dinosaur in a Haystack), discussed the "high" versus "pop" culture interpretation of the transition. Gould noted that the high culture, strict construction had been the dominant viewpoint at the 20th century's beginning, but that the pop culture viewpoint dominated at its end. Gould also included comments on adjustments to the calendar, such as those by Dionysius Exiguus (the eponymous "Diminutive Dennis") and the timing of celebrations over different transitional periods. Further of his essays on this topic are collected in Questioning the Millennium: A Rationalist's Guide to a Precisely Arbitrary Countdown.

See also


  1. ^ "millennium", Oxford Dictionaries (Oxford University Press, 2016).
  2. ^ Gould, Stephen Jay, Questioning the Millennium (New York: Harmony Books, 1997), part 2.
  3. ^ "When Does the New Millennium Begin?" January 1, 1999.
  4. ^ a b Associated Press, "Y2K It Wasn't, but It Was a Party", Los Angeles Times, January 1, 2001.
1st millennium

The first millennium was a period of time spanning the years AD 1 to AD 1000 (1st to 10th centuries; in astronomy: JD 1721425.5 – 2086667.5).

World population rose more slowly than during the preceding millennium, from about 200 million in AD 1 to about 300 million in AD 1000.In Western Eurasia (Europe and Near East), the first millennium was a time of great transition from Classical Antiquity to the Middle Ages. The 1st century saw the peak of the Roman Empire, followed by its gradual decline during the period of Late Antiquity, the rise of Christianity and the Great Migrations. The second half of the millennium is characterized as the Early Middle Ages in Europe, and marked by the Viking expansion in the west, the rise of the Byzantine Empire in the east.

Early Islam expands rapidly from Arabia to West Asia, North Africa and the Iberian peninsula., culminating in the Islamic Golden Age (700–1200 AD).

In East Asia, the first millennium was also a time of great cultural advances, notably the spread of Buddhism to East Asia. In China, the Han dynasty is replaced by the Jin dynasty and later the Tang dynasty until the 10th century sees renewed fragmentation in the Five Dynasties and Ten Kingdoms period. In Japan, a sharp increase in population followed when farmers' use of iron tools increased their productivity and crop yields. The Yamato court was established.

In South Asia, the Indian subcontinent was divided among numerous kingdoms throughout the first millennium, until the formation of the Gupta Empire.

In Mesoamerica, the first millennium was a period of enormous growth known as the Classic Era (200–900 AD). Teotihuacan grew into a metropolis and its empire dominated Mesoamerica. In South America, pre-Incan, coastal cultures flourished, producing impressive metalwork and some of the finest pottery seen in the ancient world.

In North America, the Mississippian culture rose at the end of the millennium in the Mississippi and Ohio river valleys. Numerous cities were built; Cahokia, the largest, was based in present-day Illinois. The construction of Monks Mound at Cahokia was begun in 900–950 AD.

In Sub-Saharan Africa, the Bantu expansion reaches Southern Africa by about the 5th century.

The Arab slave trade spans the Sahara and the Swahili coast by the 9th century.

1st millennium BC

The 1st millennium BC is the period of time between from the year 1000 BC to 1 BC (10th to 1st centuries BC; in astronomy: JD 1356182.5 – 1721425.5).

It encompasses the Iron Age in the Old World and sees the transition from the Ancient Near East to Classical Antiquity.

World population roughly doubled over the course of the millennium,

from about 100 million to about 200–250 million.

2nd millennium

The second millennium was a period of time spanning the years AD 1001 to 2000 (11th to 20th centuries). It encompassed the High and Late Middle Ages of the Old World, followed by the Early Modern period, characterized by the Wars of Religion in Europe, the Age of Enlightenment, the Age of Discovery and the colonial period. Its final two centuries coincide with Modern history, characterized by industrialization, the rise of nation states, the rapid development of science, widespread education, and universal health care and vaccinations in the Western world. The 20th century saw increasing globalization, most notably the two World Wars and the subsequent formation of the United Nations. 20th-century technology includes powered flight, television and semiconductor technology, including integrated circuits. The term "Great Divergence" was coined to refer the unprecedented cultural and political ascent of the Western world in the second half of the millennium, emerging by the 18th century as the most powerful and wealthy world civilization, having eclipsed Qing China and the Islamic World.

World population has grown without precedent over the millennium, from 310 million in AD 1000 to about 6,000 million in AD 2000.

Doubling time was at first seven centuries (reaching 600 million in 1700), and during the final three centuries population growth accelerated extremely, growth rate peaking at 1.8% p.a. in the second half of the 20th century. Unchecked globalization and population growth also caused considerable social and environmental consequences, giving rise to extreme poverty, climate change and biotic crisis.

3rd millennium

In contemporary history, the third millennium is a period of time that began on January 1, 2001, and will end on December 31, 3000 of the Gregorian calendar. It is distinct from the millennium known as the 2000s which began on January 1, 2000 and will end on December 31, 2999.

Archaic period (North America)

In the classification of the archaeological cultures of North America, the Archaic period or "Meso-Indian period" in North America, taken to last from around 8000 to 1000 BC in the sequence of North American pre-Columbian cultural stages, is a period defined by the archaic stage of cultural development.

The Archaic stage is characterized by subsistence economies supported through the exploitation of nuts, seeds, and shellfish. As its ending is defined by the adoption of sedentary farming, this date can vary significantly across the Americas.

The rest of the Americas also have an Archaic Period.

Digital Millennium Copyright Act

The Digital Millennium Copyright Act (DMCA) is a 1998 United States copyright law that implements two 1996 treaties of the World Intellectual Property Organization (WIPO). It criminalizes production and dissemination of technology, devices, or services intended to circumvent measures that control access to copyrighted works (commonly known as digital rights management or DRM). It also criminalizes the act of circumventing an access control, whether or not there is actual infringement of copyright itself. In addition, the DMCA heightens the penalties for copyright infringement on the Internet. Passed on October 12, 1998, by a unanimous vote in the United States Senate and signed into law by President Bill Clinton on October 28, 1998, the DMCA amended Title 17 of the United States Code to extend the reach of copyright, while limiting the liability of the providers of online services for copyright infringement by their users.

The DMCA's principal innovation in the field of copyright is the exemption from direct and indirect liability of Internet service providers and other intermediaries. This exemption was adopted by the European Union in the Electronic Commerce Directive 2000. The Copyright Directive 2001 implemented the 1996 WIPO Copyright Treaty in the EU.

Last Glacial Maximum

The Last Glacial Maximum (LGM) was the most recent time during the Last Glacial Period when ice sheets were at their greatest extent.

Vast ice sheets covered much of North America, northern Europe, and Asia. The ice sheets profoundly affected Earth's climate by causing drought, desertification, and a large drop in sea levels.

The ice sheets reached their maximum coverage about 26,500 years ago (26.5 ka BP). Deglaciation commenced in the Northern Hemisphere at approximately 20 ka and in Antarctica approximately at 14.5 ka, consistent with evidence for an abrupt rise in the sea level at about 14.5 ka.The LGM is referred to in Britain as the Dimlington Stadial, dated by Nick Ashton to between 31 and 16 ka.

In the archaeology of Paleolithic Europe, the LGM spans the Gravettian, Solutrean, Magdalenian and Périgordian.

The LGM was followed by the Late Glacial.

List of centuries

The pages listed below contain information about trends and events in particular centuries and millennia.

Millennium (TV series)

Millennium (stylized as MillenniuM) is an American television series created by Chris Carter (creator of The X-Files), which aired on Fox between 1996 and 1999. The series follows the investigations of ex-FBI agent Frank Black (Lance Henriksen), now a consultant, with the ability to see inside the minds of criminals, working for a mysterious organization known as the Millennium Group.

The series was filmed in Vancouver, British Columbia, though most episodes were ostensibly set in or around Seattle, Washington. The theme music was composed by Mark Snow, who also created the distinctive theme music for The X-Files. Although the series premiered with impressive ratings, viewership declined throughout its three-season run, and it was canceled by Fox in early 1999. A seventh-season episode of The X-Files, titled "Millennium", featured the Millennium Group and Frank Black, as a way of giving the show some closure.

In 2018, the show was ranked #87 in Rotten Tomatoes's 100 Best Sci-Fi TV Shows of All Time.

Millennium Development Goals

The Millennium Development Goals (MDGs) were the eight international development goals for the year 2015 that had been established following the Millennium Summit of the United Nations in 2000, following the adoption of the United Nations Millennium Declaration. All 191 United Nations member states at that time, and at least 22 international organizations, committed to help achieve the following Millennium Development Goals by 2015:

To eradicate extreme poverty and hunger

To achieve universal primary education

To promote gender equality and empower women

To reduce child mortality

To improve maternal health

To combat HIV/AIDS, malaria, and other diseases

To ensure environmental sustainability

To develop a global partnership for development

Each goal had specific targets, and dates for achieving those targets. To accelerate progress, the G8 finance ministers agreed in June 2005 to provide enough funds to the World Bank, the International Monetary Fund (IMF) and the African Development Bank (AfDB) to cancel $40 to $55 billion in debt owed by members of the heavily indebted poor countries (HIPC) to allow them to redirect resources to programs for improving health and education and for alleviating poverty.

Interventions evaluated include (1) improvements required to meet the millennium development goals (MDG) for water supply (by halving by 2015 the proportion of those without access to safe drinking water), (2) meet the water MDG plus halving by 2015 the proportion of those without access to adequate sanitation, (3) increasing access to improved water and sanitation for everyone, (4) providing disinfection at point-of-use over and above increasing access to improved water supply and sanitation (5) providing regulated piped water supply in house and sewage connection with partial sewerage for everyone (Hutton, G. Evaluation of the Cost and Benefits of Water and Sanitation Improvements at the Global Level, 2004 WHO-Geneva)

Critics of the MDGs complained of a lack of analysis and justification behind the chosen objectives, and the difficulty or lack of measurements for some goals and uneven progress, among others. Although developed countries' aid for achieving the MDGs rose during the challenge period, more than half went for debt relief and much of the remainder going towards natural disaster relief and military aid, rather than further development.

As of 2013, progress towards the goals was uneven. Some countries achieved many goals, while others were not on track to realize any. A UN conference in September 2010 reviewed progress to date and adopted a global plan to achieve the eight goals by their target date. New commitments targeted women's and children's health, and new initiatives in the worldwide battle against poverty, hunger and disease.

Among the non-governmental organizations assisting were the United Nations Millennium Campaign, the Millennium Promise Alliance, Inc., the Global Poverty Project, the Micah Challenge, The Youth in Action EU Programme, "Cartoons in Action" video project and the 8 Visions of Hope global art project.

The Sustainable Development Goals (SDGs) replaced the MDGs in 2016.

Millennium Falcon

The Millennium Falcon is a fictional starship in the Star Wars franchise. The modified YT-1300 Corellian light freighter is primarily commanded by Corellian smuggler Han Solo (Harrison Ford) and his Wookiee first mate, Chewbacca (Peter Mayhew). Designed by the Corellian Engineering Corporation (CEC), the highly modified YT-1300 is durable, modular, and is stated as being the second-fastest vessel in the Star Wars canon.

The Millennium Falcon first appears in Star Wars (1977), and subsequently in The Star Wars Holiday Special (1978), The Empire Strikes Back (1980), Return of the Jedi (1983), Revenge of the Sith (2005), The Force Awakens (2015), The Last Jedi (2017), and Solo: A Star Wars Story (2018). Additionally, the Falcon appears in a variety of Star Wars expanded universe materials, including books, comics, and games; James Luceno's novel Millennium Falcon focuses on the titular ship. It also appears in the 2014 animated film The Lego Movie in Lego form, with Billy Dee Williams and Anthony Daniels reprising their roles of Lando Calrissian and C-3PO, and Keith Ferguson voicing Han Solo.

Millennium Stadium

The Millennium Stadium (Welsh: Stadiwm y Mileniwm), since 2016 named for sponsorship purposes as the Principality Stadium (Welsh: Stadiwm Principality), is the national stadium of Wales, located in Cardiff. It is the home of the Wales national rugby union team and has also staged games of the Wales national football team. Initially built to host the 1999 Rugby World Cup, it has gone on to host many other large-scale events, such as the Tsunami Relief concert, the Super Special Stage of Wales Rally Great Britain, the Speedway Grand Prix of Great Britain and various music concerts. It also hosted six FA Cup finals and several other high-profile football fixtures while Wembley Stadium was being redeveloped.

The stadium is owned by Millennium Stadium plc, a subsidiary company of the Welsh Rugby Union (WRU). The stadium was designed by a team led by architects Bligh Lobb Sports Architecture. WS Atkins were the structural engineers, and the building contractor was Laing. The total construction cost of the stadium was £121 million, of which the Millennium Commission funded £46 million.The Millennium Stadium opened in June 1999 and its first major event was an international rugby union match on 26 June 1999, when Wales beat South Africa in a test match by 29–19 before a crowd of 29,000. With a total seating capacity of 74,500, it is the third-largest stadium in the Six Nations Championship behind the Stade de France and Twickenham. It is also the second-largest stadium in the world with a fully retractable roof and was the second stadium in Europe to have this feature. Listed as a category four stadium by UEFA, the stadium was chosen as the venue for the 2017 UEFA Champions League Final, which took place on 3 June 2017. In 2015, the Welsh Rugby Union announced a 10-year sponsorship deal with the Principality Building Society that saw the stadium renamed as the "Principality Stadium" from early 2016.

Mötley Crüe

Mötley Crüe is an American rock band formed in Los Angeles, California, on January 17, 1981. The group was founded by bassist Nikki Sixx and drummer Tommy Lee, lead singer Vince Neil and lead guitarist Mick Mars. Mötley Crüe has sold more than 100 million records worldwide, including 25 million albums in the United States, making them one of the best-selling bands of all time.The members of the band have often been noted for their hedonistic lifestyles and the persona they maintained. Following its hard rock and heavy metal origins, with the third album Theatre of Pain (1985), the band joined the first wave of glam metal. Its most recent studio album, Saints of Los Angeles, was released on June 24, 2008. Its final show took place on New Year's Eve, December 31, 2015, and was filmed for a theatrical and Blu-ray release in 2016. On September 13, 2018, Mötley Crüe announced that they had reunited and were working on new music.


Sumer () is the earliest known civilization in the historical region of southern Mesopotamia, modern-day southern Iraq, during the Chalcolithic and Early Bronze ages, and one of the first civilizations in the world along with Ancient Egypt and the Indus Valley. Living along the valleys of the Tigris and Euphrates, Sumerian farmers were able to grow an abundance of grain and other crops, the surplus of which enabled them to settle in one place. Prehistoric proto-writing dates back before 3000 BC. The earliest texts, from c. 3300 BC, come from the cities of Uruk and Jemdet Nasr; early cuneiform script emerged around 3000 BC.Modern historians have suggested that Sumer was first permanently settled between c. 5500 and 4000 BC by a West Asian people who spoke the Sumerian language (pointing to the names of cities, rivers, basic occupations, etc., as evidence), an agglutinative language isolate. These prehistoric people are now called "proto-Euphrateans" or "Ubaidians", and are theorized to have evolved from the Samarra culture of northern Mesopotamia. The Ubaidians, though never mentioned by the Sumerians themselves, are assumed by modern-day scholars to have been the first civilizing force in Sumer. They drained the marshes for agriculture, developed trade, and established industries, including weaving, leatherwork, metalwork, masonry, and pottery.Some scholars contest the idea of a Proto-Euphratean language or one substrate language; they think the Sumerian language may originally have been that of the hunting and fishing peoples who lived in the marshland and the Eastern Arabia littoral region and were part of the Arabian bifacial culture. Reliable historical records begin much later; there are none in Sumer of any kind that have been dated before Enmebaragesi (c. 26th century BC). Juris Zarins believes the Sumerians lived along the coast of Eastern Arabia, today's Persian Gulf region, before it was flooded at the end of the Ice Age.Sumerian civilization took form in the Uruk period (4th millennium BC), continuing into the Jemdet Nasr and Early Dynastic periods. During the 3rd millennium BC, a close cultural symbiosis developed between the Sumerians, who spoke a language isolate, and Akkadians, which gave rise to widespread bilingualism.

The influence of Sumerian on Akkadian (and vice versa) is evident in all areas, from lexical borrowing on a massive scale, to syntactic, morphological, and phonological convergence. This has prompted scholars to refer to Sumerian and Akkadian in the 3rd millennium BC as a Sprachbund. Sumer was conquered by the Semitic-speaking kings of the Akkadian Empire around 2270 BC (short chronology), but Sumerian continued as a sacred language. Native Sumerian rule re-emerged for about a century in the Third Dynasty of Ur at approximately 2100–2000 BC, but the Akkadian language also remained in use.The Sumerian city of Eridu, on the coast of the Persian Gulf, is considered to have been the world's first city, where three separate cultures may have fused: that of peasant Ubaidian farmers, living in mud-brick huts and practicing irrigation; that of mobile nomadic Semitic pastoralists living in black tents and following herds of sheep and goats; and that of fisher folk, living in reed huts in the marshlands, who may have been the ancestors of the Sumerians.

The O2 Arena

The O2 Arena is a multi-purpose indoor arena located in the centre of The O2 entertainment complex on the Greenwich Peninsula in south east London.

The arena was built under the former Millennium Dome, a large dome shaped building built to house an exhibition celebrating the turn of the third millennium; as the dome shaped structure still stands over the arena, The Dome remains a name in common usage for the venue. The arena, as well as the total O2 complex, is named after its primary sponsor, the telecommunications company O2.

The O2 Arena has the second highest seating capacity of any indoor venue in the United Kingdom, behind the Manchester Arena, but took the crown of the world's busiest music arena from New York City's Madison Square Garden in 2008. The closest underground station to the venue is the North Greenwich station on the Jubilee line.

Timeline of human prehistory

This timeline of human prehistory comprises the time from the first appearance of Homo sapiens in Africa 300,000 years ago to the invention of writing and the beginning of historiography, after 5,000 years ago.

It thus covers the time from the Middle Paleolithic (Old Stone Age) to the very beginnings of the world history.

All dates are approximate subject to revision based on new discoveries or analyses.

Timeline of the far future

While the future can never be predicted with absolute certainty, present understanding in various scientific fields allows for the prediction of some far-future events, if only in the broadest outline. These fields include astrophysics, which has revealed how planets and stars form, interact, and die; particle physics, which has revealed how matter behaves at the smallest scales; evolutionary biology, which predicts how life will evolve over time; and plate tectonics, which shows how continents shift over millennia.

All projections of the future of the Earth, the Solar System, and the universe must account for the second law of thermodynamics, which states that entropy, or a loss of the energy available to do work, must rise over time. Stars will eventually exhaust their supply of hydrogen fuel and burn out. Close encounters between astronomical objects gravitationally fling planets from their star systems, and star systems from galaxies.Physicists expect that matter itself will eventually come under the influence of radioactive decay, as even the most stable materials break apart into subatomic particles. Current data suggest that the universe has a flat geometry (or very close to flat), and thus will not collapse in on itself after a finite time, and the infinite future allows for the occurrence of a number of massively improbable events, such as the formation of Boltzmann brains.The timelines displayed here cover events from the beginning of the 11th millennium

to the furthest reaches of future time. A number of alternative future events are listed to account for questions still unresolved, such as whether humans will become extinct, whether protons decay, and whether the earth survives when the sun expands to become a red giant.

Upper Paleolithic

The Upper Paleolithic (or Upper Palaeolithic, Late Stone Age) is the third and last subdivision of the Paleolithic or Old Stone Age. Very broadly, it dates to between 50,000 and 10,000 years ago (the beginning of the Holocene), according to some theories coinciding with the appearance of behavioral modernity and before the advent of agriculture.

Anatomically modern humans (i.e. Homo sapiens) are believed to have emerged out of Africa around 200,000 years ago, although these lifestyles changed very little from that of archaic humans of the Middle Paleolithic, until about 50,000 years ago, when there was a marked increase in the diversity of artefacts.

This period coincides with the expansion of modern humans from Africa throughout Asia and Eurasia, which contributed to the extinction of the Neanderthals.

The Upper Paleolithic has the earliest known evidence of organized settlements, in the form of campsites, some with storage pits. Artistic work blossomed, with cave painting, petroglyphs, carvings and engravings on bone or ivory. The first evidence of human fishing is also found, from artefacts in places such as Blombos cave in South Africa. More complex social groupings emerged, supported by more varied and reliable food sources and specialized tool types. This probably contributed to increasing group identification or ethnicity.The peopling of Australia most likely took place before c. 60 ka. Europe was peopled after c. 45 ka.

Anatomically modern humans are known to have expanded northward into Siberia as far as the 58th parallel by about 45 ka (Ust'-Ishim man).

The Upper Paleolithic is divided by the Last Glacial Maximum (LGM), during about 25 to 15 ka. The peopling of the Americas occurred during this time, with East and Central Asia populations reaching the Bering land bridge after about 35 ka, and expanding into the Americas by about 15 ka.

In Western Eurasia, the Paleolithic eases into the so-called Epipaleolithic or Mesolithic from the end of the LGM, beginning 15 ka. The Holocene glacial retreat begins 11.7 ka (10th millennium BC), falling well into the Old World Epipaleolithic, and marking the beginning of the earliest forms of farming in the Fertile Crescent.


Yu-Gi-Oh! (遊☆戯☆王, Yū-Gi-Ō!, lit. "King of Games") is a Japanese manga series about gaming written and illustrated by Kazuki Takahashi. It was serialized in Shueisha's Weekly Shōnen Jump magazine between September 30, 1996 and March 8, 2004. The plot follows the story of a boy named Yugi Mutou, who solves the ancient Millennium Puzzle. Yugi awakens a gambling alter-ego within his body that solves his conflicts using various games.

Two anime adaptations were produced; one by Toei Animation, which aired from April 4, 1998 to October 10, 1998, and another produced by NAS and animated by Studio Gallop titled Yu-Gi-Oh! Duel Monsters, which aired between April 2000 and September 2004. The manga series has spawned a franchise that includes multiple spin-off manga and anime series, a trading card game, and numerous video games. Most of the incarnations of the franchise involve the fictional trading card game known as Duel Monsters, where each player uses cards to "duel" each other in a mock battle of fantasy "monsters". This forms the basis for the real life Yu-Gi-Oh! Trading Card Game. As of 2018, Yu-Gi-Oh is one of the highest-grossing media franchises of all time.

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