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  2. List of time periods - Wikipedia

    en.wikipedia.org/wiki/List_of_time_periods

    This is a list of such named time periods as defined in various fields of study. ... Long nineteenth century (1789–1914) Georgian era (the United Kingdom, ...

  3. Aeon - Wikipedia

    en.wikipedia.org/wiki/Aeon

    According to Christian universalism, the Greek New Testament scriptures use the word aión (αἰών) to mean a long period and the word aiṓnion (αἰώνιον) to mean "during a long period"; thus, there was a time before the aeons, and the aeonian period is finite. After each person's mortal life ends, they are judged worthy of aeonian ...

  4. Era - Wikipedia

    en.wikipedia.org/wiki/Era

    An era is a span of time defined for the purposes of chronology or historiography, as in the regnal eras in the history of a given monarchy, a calendar era used for a given calendar, or the geological eras defined for the history of Earth. [1] Comparable terms are Epoch, age, period, saeculum, aeon (Greek aion) [2] and Sanskrit yuga. [3]

  5. Fortnight - Wikipedia

    en.wikipedia.org/wiki/Fortnight

    In astronomy, a lunar fortnight is half a lunar synodic month, which is equivalent to the mean period between a full moon and a new moon (and vice versa). This is equal to 14.07 days. [3] [4] It gives rise to a lunar fortnightly tidal constituent (see: Long-period tides).

  6. List of decades, centuries, and millennia - Wikipedia

    en.wikipedia.org/wiki/List_of_decades,_centuries...

    See history, history by period, and periodization for different organizations of historical events. For earlier time periods, see Timeline of the Big Bang , Geologic time scale , Timeline of evolution , and Logarithmic timeline.

  7. Kalpa (time) - Wikipedia

    en.wikipedia.org/wiki/Kalpa_(time)

    Each kalpa is divided into 14 manvantara periods, each lasting 71 Yuga Cycles (306,720,000 years). Preceding the first and following each manvantara period is a juncture (sandhya) equal to the length of a Satya Yuga (1,728,000 years). [5] A kalpa is followed by a pralaya (dissolution) of equal length, which together constitute a day and night ...

  8. Millennium - Wikipedia

    en.wikipedia.org/wiki/Millennium

    Popular culture supported celebrating the arrival of the new millennium in the transition from 1999 to 2000 (i.e., December 31, 1999, to January 1, 2000), in that the change of the hundreds digit in the year number, with the zeroes rolling over, is consistent with the vernacular demarcation of decades by their 'tens' digit (e.g. naming the ...

  9. Time perception - Wikipedia

    en.wikipedia.org/wiki/Time_perception

    If long-term time perception is based solely on the proportionality of a person's age, then the following four periods in life would appear to be quantitatively equal: ages 5–10 (1x), ages 10–20 (2x), ages 20–40 (4x), age 40–80 (8x), as the end age is twice the start age. However, this does not work for ages 0–10, which corresponds to ...