epochismn.
/ˈɛpəkɪz(ə)m/ The practice of dividing time into epochs.
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epochism1865
periodization1898
periodizing1925
1865 Athenæum No. 1970. 140/1 Chronological epochism.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2018).
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n.1865