List of time periods
This 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 the format (start - finish)lists should be in chronological order of the start of their period. See Periodization for a discussion of the tendency to try to fit history into non-overlapping periods.List of themed timelinesExponential timeline shows all history on one page in ten lines.
The cosmological timescale is the longest imaginable. It covers the entire
extent of the universe - many billions of years. A short first period is
measured in tiny fractions of seconds, but thereafter most things happen
on the scale of billion years. It is used to consider events noticeable
on a universal scale, such as the formation of matter, stars, and
galaxies. The geologic timescale covers the extent of the existence of Earth, from
about 4600 million years ago to the present day. It is used to consider
the formation and change of the Earth itself, and large-scale changes
in the planet's inhabitants. Dates are given as Millions of Years Ago (MYA).
The Paleocene, the Eocene, and the Oligocene are also collectively known as the Paleogene. The Miocene and the Pliocene
are also collectively known as the Neogene.
These names differ across different countries; in particular, the division
of the Carboniferous period into Mississippian and Pennsylvanian
is purely a North American distinction.
Human time periods The "human" timescale covers the time that humans have existed, usually
taken to be from about 250,000 years ago - when Homo Sapiens began to develop.
It is broadly divided into prehistorical (before history began to be recorded)
and historical periods (when written records began to be kept).
Calendar systems
Antiquity (Ancient Greece, c:a 1000 BC-, see Timeline of Ancient Greece)Pax Romana (Roman Empire, 96 - 180)Period of the Three Kingdoms (China, 220 - 280)Middle ages (Europe, 5th century - 14th century)Nara period (Japan, 709 - 795Period of Five Dynasties and Ten Kingdoms (China, 907 - 960)Sengoku period (Japan, 1478 - 1605)The Renaissance (Europe, 14th century - 16th century)Elizabethan period (United Kingdom, 1558 - 1603)The Age of Enlightenment Europe,18th centuryNapoleonic Era, 1799-1815Victorian era (United Kingdom, 1837 - 1901)Edwardian period (United Kingdom, 1901 - 1910)Meiji era (Japan, 1868 - 1912)Cold War (United States and Russia, as well as Earth, 1945-1989)Post-communist period (Russia, after 1991)
Mythological and astrological time periods There are many fields which have their own associated historical periods.
These include: Not yet in any particular order
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