Integrative Levels Classification project ILC2 schedules developing schedules how it works people references

ILC developing version
Expanded class cb

    broader class

          cb       time  [chronology]
          cb81   [an]                lasting s duration
          cb90                 as compared with reference entity
          cbX   [an]            time years
          cbY            present, past and future
          cbYc                 the past
          cbYn                 now; present time  ↞ cbxprsvxw present day
          cbYu                 the future
          cbb            Big Bang time; Planck epoch
          cbs            hundreds of thousands years
          cbsrv                      Cosmic Dark Age beginning; 370;000 years
          cbv            hundreds of millions years
          cbvu                 Renaissance of the Universe; visible light domination beginning; 600 M years
          cbw            billions years
          cbwp                 Galaxy Epoch beginning; 1 G years
          cbws                 Hadean Eon; Nectarian Era; 4;500 to 4;000 Ma
          cbwu                 Acceleration; dark energy domination beginning; 6 G years
          cbwx                 Solar Era; Solar System formation time; 9 G years
          cbx            more than billions years
          cbxb                 tens of billions years
          cbxbp                      Archean Eon; origins of life and plate tectonics; 13.4 to 13.55 billion years; 4;000 Ma
          cbxbq                      Proterozoic; 2;500 to 500 Ma
          cbxpr                      13 billions years
          cbxprs                           Phanerozoic; 500 Ma to present
          cbxprsv                                13.7 billions years
          cbxprsvx                                     13.79 billions years
          cbxprsvxw                                     present day; 13.798 billions years  
Connected classes:
                 cbYn                now; present time  ↞ cbxprsvxw 
                 i1      in era; period  [geochronology; stratigraphy]  ↞ cbx 
                 y3mk                clocks  ↞ cb 

current: 99 



Move to another main class:
      a  b  c  d  e  f  g  h  i  j  k  l  m  n  o  p  q  r  s  t  u  v  w  x  y


or insert a term  and do a new

Facets key
0  as for perspective +
1  at time            +
2  in place           +
3  by agent           +
4  opposed to         +
5  undergoing change  +
6  having property    +
7  with part          +
8  in quantity        +
9  of quality         +


ILC developing version. Expanded class cb / — ISKO Italia <> : 2006.03.06 - 2021.12.09 -