Logarithmic timeline

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
• An invention or discovery is with respect to our human civilization on Earth. See Timeline of invention.
• An outside context problem can be thought of as a crisis for civilization in many respects, including extinction events for species on Earth

YA 10n	Years Ago	Period	Events	Inventions / Discoveries	Outside Context Problems
101	0-      10	1995 - present: 1990s, 2000s	Logarithmic timeline of current events,	GPS, DVD, Nanotechnology, Biotechnology more..	Asymmetric warfare
102	100-     10	1900 - 1995: 20th century	Mass society, Communism,	Automobiles, Fusion power, Aircraft, Spacecraft, Antibiotics, Electronics, more...	Cold War, World War I & II,
103	1k-    100	1000 - 1900: Middle Ages, 2nd millennium AD	Renaissance, Reformation, Industrialization	Printing press, Americas, Industrial Revolution,	Revolutions
104	10k-     1k	8000 BCE - 1000 CE: Centuries, Bronze Age, Iron Age	Civilization, Pyramids, Jericho, Religion	Writing, Wheel, more..	Slavery
105	100k-   10k	Paleolithic, Holocene Neolithic	Cave paintings	Agriculture, Art, Dance, Tally stick	Ice Age, Neanderthal extinction
106	1M- 100k	Pleistocene	150K Human,	Fire, Language, Magic, Religion
107	10M-   1M	Pliocene,	~2M Evolution of Homo sapiens, Homo erectus	Stone Age, Hunting - Gathering, tools
108	100M-  10M	~Tertiary	Grasses		Cretaceous-Tertiary extinction event,
109	1B-100M	Paleozoic, Mesozoic	Animals, Flowering plants		Mass extinctions
1010	14B-     1B	Precambrian	Big Bang, Galaxy , Life on Earth

See also

• Timeline of the Universe
• Geologic timescale
• Orders of magnitude (time)