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This logarithmic timeline, based on logarithmic scale, is able to show all history on one page in ten lines. In this chart, each row is defined in years ago, that is, years before the present date, with the most recent at the top of the chart.

A period corresponds to an epoch
An event is an occurrence of an observed or inferred process
- Progress refers to civilizational advances, such as inventions and scientific discoveries; see Timeline of invention for more.
- Regression indicates a problem or crisis that can be considered as the opposite of progress: having a retardative effect on life or civilization.
  - This is an arbitrary listing as progress toward the current state of human civilization is the apparent selection criterion.

"Civilization advances by extending the number of important operations which we can perform without thinking about them." -- Alfred North Whitehead

Years Ago	PeriodThis is a list of named time periods defined in various fields of study. This list is under construction: the eventual aim is for it to be a compendium of names of eras and epochs in all fields of study To do periods should have approximate dates added in	Progress	Regression
0– 10	1995–presentThis Current events timeline based on logarithmic scale, is able to show most important events in last ten years on one page in ten lines. Timelines.: 1990sCenturies: 19th century 20th century 21st century Decades: 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s 2030s 2040s Years: Events and trends Computers, technology Explosive growth of the Internet; decrease in the cost of computers and other techn, 2000sThis article is about the decade starting at the beginning of 2000 and ending at the end of 2009. For the century or millennium starting in 2000, see the links below. Millennia: 2nd millennium 3rd millennium 4th millennium Centuries: 20th century 21st cen	WWWThe World Wide Web (the Web or WWW for short) is a distributed hypertext system that operates over the Internet. Basic terms Hypertext is viewed using a program called a web browser which retrieves pieces of information, called "documents" or " web pages", BiotechnologyBiotechnology is technology based on biology, especially when used in agriculture, food science, and medicine. Of the many different definitions available the one formulated by the UN " Convention on Biological Diversity" is the most all-encompassing: :"B, NanotechnologyNanotechnology as a collective term refers to technological developments on the nanometre scale, usually 0. One nanometre equals one thousandth of a micrometre or one millionth of a millimetre. The term sometimes applies to any microscopic technology., more..	Nuclear war, Global warming
10– 100	1900–1995: 20th century	Car to spacecraft, Fusion power, Antibiotics, Electronics, Mass society, more...	Totalitarianism, World wars, Nuclear war
100– 1 k	1000–1900, Middle Ages	Renaissance, Printing press, Americas, Industrial Revolution, more...	Plague, Famine, Inquisition
1k– 10k	Start of Holocene, 8000 BC–AD 1000, Bronze Age, Iron Age	Ice age ends, Cities, Writing, Wheel, Civilization, Pyramids, Jericho more..	Slavery, Religious Demagoguery
10k– 100k	Pleistocene ends, Paleolithic, Neolithic	Agriculture, Cave paintings, Art, Dance, Tally stick, Ice age	Neandertal extinction
100k– 1 M	Pleistocene	150K Human, Fire, Language?, Ice age, Religion	Magical explanation
1M– 10M	Pliocene, Stone Age	~2M Evolution of Homo sapiens, Hunting - Gathering, Tools
10M– 100M	~ Tertiary	Grasses, Mammals, Cretaceous-Tertiary extinction event	-
100M– 1 B	Paleozoic, Mesozoic	Cambrian explosion of life, Animals, Flowering plants, Permian-Triassic extinction event	-
1B– 14B	Precambrian	Big Bang, Physical constants established, Stars and galaxies, Life on Earth ( bacteria), Oxygen in atmosphere, Mass extinctions	-

1 More Detailed Exponential Timeline in Steps of ₁₀^{^2/3}

Another interesting property is the ordering of experience into intuitive notions of experience (this is not the case for us with linear scales, for example the years 3, 432, 623, 096 BC and 3, 432, 623, 097 BC).

Time ago	Period
16 weeks - 17 months	spanning Apr, May, Jun, Jul, Aug, Sep, Oct, Nov & Dec 2003 and Jan, Feb, Mar, Apr & May 2004: Nation building in occupied Iraq.
17 months - 6.5 years	Era of the Www, spanning 1998, 1999, 2000, 2001, 2002, & 2003: Success of Linux & open source software production. The dot-com bubble. Wikipedia. Escalation of islamistic terrorism ( 9/11); and situation in Near & Middle East, Iraq war. China acquires Hong Kong; now leading figure in economy & industry, Shenzhou spacecraft. International Space Station. Columbia catastrophe. Euro. EU & NATO enlargement by eastern european countries. Conservativism in US and Russia. Anti-globalization movement. Human Genome Project completes. Viagra.
6.5- 30 years	Multicultural Era, spanning 74, 75, 76, 77, 78, 79, the 80s, 90, 91, 92, 93, 94, 95, 96, 97 & 98: Experience of Limits to Growth; oil, energy & environmental crises. Ecologic movement. NGOs. Computer; Moore's law & software. Industrial & autonomous robots. Anthropocentrism weakened by science fiction, UFO & SETI (but decline of interplanetary space flight). Interested assimilation of foreign culture & alternative lifestyles. Tendencies towards laissez-faire globalization ( neoliberalism); multinational corporations. Decline of Communism. Fall of the Berlin Wall. Market-orientation of Chinese economy. Postmodernism. New age.
30- 140 years	Industrial Age, spanning the 1860s, 1870s, 1880s, 1890s, 1900s, 1910s, 1920s, 1930s, 1940s, 1950s, 1960s & 1970s: Engine driven traffic & machines. Petroleum & chemicals. Aerospace, electrical & nuclear engineering. Photography & mass media. Non-standard maths & physics. Darwinism & genetics. Egalitarianism( Socialism) & speciesism towards mass society: 'Abundancy for all through technology'. Universal suffrage. Liberalism. New Imperialism followed by breakup of European Empires; industrial ascent of Asian Nations. World War I & World War II. Psychology. 'American dream'.
140- 650 years	Renaissance & Modern Age until revolutions & first Industrial Revolution in Britain spanning the 14th, 15th, 16th, 17th, 18th & 19th century: Protestant reform & enlightenment. Firearms. Textile industry. Precise mechanical machines. Optics. Calculus. Printing press & scientific organizations. Global sea traffic, trade & colonization. 'European radiation'. Little Ice Age.
650- 3k years	'Classical' Iron age and Middle Ages spanning 1st millennia BC & AD and the 11th, 12th, 13th & 14th century: Democracy & capitalism; self governed citizenship appears. armoured knighthood. Trans-atlantic seamanship. Critical and social thought appears; education of individual responsibility. The 'familiar' concepts of the personal meaning of life & lifestyle to identify with are coined. An early empiric science & alchemy are concealed beneath strong individualistic tendencies. Politics.
3k- 14k years	Early Holocene period consisting of Neolithic age, Chalkolithic age , Bronze age containing the 10th, 9th, 8th, 7th, 6th, 5th, 4th, 3rd & 2nd millennium BC: Domestication of animals (and people) begins, large settlements of stone architecture are raised. Gaining of ceramic and metallic materials with ovens. Agriculture & irrigation. Mechanics; invention of the wheel. Writing, law & trade. Coastal seamanship & astronomy. Spinning & loom.
14k- 65k years	Upper paleolithic period: Time of Cro-Magnon, anatomically identical to modern humans: Most sophisticated Aurignacian, Gravettian & Solutrean flint and bone technology. Aesthetics emerge with Cave art, Venus figurines, pendants, bracelets, ivory beads. Needle & thread. Usage of calendars. Projectile weapons like spear and atlatl. Life of Y-chromosomal Adam?
65k- 300k years	Middle paleolithic period: Time of homo neanderthalensis: Development of Mousterian stone technology, pikeheads, hand axes and multiple specialised tools, i.e. for processing of animal skin to clothing, sacks and complex shelters. Crude bone handcraft begins. Shamanism emerges, burial practices take place. Life of Mitochondrial Eve. Life of Y-chromosomal Adam?
300k- 1.4M years	Early Pleistocene epoch of Quaternary period: The bloom of homo erectus, development of language, mastery of fire and Acheulean stone technology that serves as weapon for hunting and protection against any existing species. Early forms of division of labor (i.e. for hunting). Artificial dwellings of boughs and furs are inhabited and the environment comes under the influence of social control.
1.4M- 6.5M years	Early stone age: In the Pliocene epoch, the first human-like ancestors live. The oldest is Australopithecus, followed by homo habilis and the early homo erectus. The most ancient stone age technology, Oldowan, emerges. The brain volume grows to an amount comparable to that of modern mankind. This strong increase in encephalization is regarded as mystery; one attempt of explanation is a begin of meme processing.
6.5M- 30M years	Era of apes: In the Oligocene epoch, Aegyptopithecus appears. Apes have 3D sight and skillful hands with opposable thumbs for living in the evolution-generated 3D environment of forests. They (like other mammals) are said to be capable of Metacognition , the ability of doubt and autobiographic memory. In the Miocene epoch, a descendant was Dryopithecus , ancestor of all modern apes and mankind.
30M- 140M years	Era of mammals: In the Cretaceous period of Mesozoic age, birds and placental mammals exist in the shadow of the dinosaurs. These endotherms (and maybe some highly developed dinosaurs) share a special capability for emotion and social behaviour. After the extinction of dinosaurs in the Paleogene subperiod of the Tertiary period, endotherms gain domination of the land; primates appear.
140M- 650M years	Era of animals: After the Varanger glaciation in the Ediacaran period of the Neoproterozoic age, the first multicellular fungi, plants and animals emerge. The Paleozoic age begins with the Cambrian explosion spreading a great variety of animal forms; Nervous systems appear with senses, brain and behavior. In Silurian and Devonian time, life enters the land. The Mesozoic age brings the Dinosaurs.
650M- 3 B years	Era of single cells; The Archaean age ends with the accumulation of Oxygen by Cyanobacteria, the Proterozoic begins: In the Paleoproterozoic our biosphere stabilizes with aerophile bacteria, in the Mesoproterozoic age emerge cells with nuclei capable of sexual reproduction and the Neoproterozoic (until the Varanger glaciation from 750 - 580 M years ago) prepared multicellular life.
3 B- 14 B years	Earth: formed 4.5B, Hadean age 3.8B - 2.5B Archaean age; life in form of archaea appears in a comparatively small fraction (600 or less to 950 M years) of the period of single cells. Milky Way: The Panspermia hypothesis suggests life to emerge in the depths of space long before. Arisen from Universe soon after Big Bang, a first generation of stars provides heavy elements for Chemistry & planets after some B years.

2 See also

Timelines Exponentials

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Topics: Logarithmic Timeline, Logarithmic Identities, Logarithmic Spiral...

Logarithmic identitiesWhat follows is a list of identities that are useful when dealing with logarithms. All of these are valid for all positive real numbers a b and c — except that the base of a logarithm may never be 1. Logarithmic and exponential functions are inverses : :	Logarithmic spiralLogarithmic spiral (pitch 10° Cutaway of a nautilus shell ''showing the chambers arranged in an ''approximately logarithmic spiral A logarithmic spiral equiangular spiral or growth spiral is a special kind of spiral curve which often appears in nature.	Logarithmic integralIn mathematics, the logarithmic integral or integral logarithm li x is a non-elementary function defined for all positive real numbers x ne; 1 by the definite integral: : Here, ln denotes the natural logarithm. The function 1/ln t has a singularity at t 1
Logarithmic scaleValue Logarithmic scales give the logarithm of a quantity instead of the quantity itself. This is often done if the underlying quantity can take on a huge range of values; the logarithm reduces this to a more manageable range. Some of our senses operate i	Logarithmic derivativeIn mathematics, specifically in calculus and complex analysis, the logarithmic derivative of a function f is defined by the formula f prime; f where f&prime is the derivative of f''. When f is a function f(x of a real variable x and takes real, strictly p	Logarithmic timelineThis logarithmic timeline based on logarithmic scale, is able to show all history on one page in ten lines. In this chart, each row is defined in years ago that is, years before the present date, with the most recent at the top of the chart. A period corr
Logarithmic timeline of current events	Logarithmic form	Logarithmic distribution