Cipher seals

  1. 42
  2. 69
  3. 420
  4. 690

Quiet field

342

The year was full. This aperture was quiet.

The surviving record for 342 is not blank. It does not, under the categories declared before this sweep, resemble a cluster of instruments, laws, or named firsts that would promote the year. Quiet is a description of the aperture, not of the century.

  • Constantius II and Constans in the divided empire
  • Arian controversy continuing
  • Eastern Jin in China

The aperture

Quiet under the declared categories. Retained as a denominator year.

Regions checked

  • Europe
  • Middle East and North Africa
  • East Asia
  • South Asia
  • Africa
  • the Americas
  • Central Asia

Included / excluded

    41 | 42 | 43

    Same century. Same research threshold. Matched frames. Neither pane brighter except that the middle year is the selected aperture.

    341

    Neighbor

    341: ecclesiastical politics continue. Not empty.

    342

    Aperture

    Quiet under the declared categories. Retained as a denominator year.

    343

    Neighbor

    343: Constans’s campaign in Britain is sometimes placed near this date. Not quieter by default.