Cipher seals

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

Quiet field

942

The year was full. This aperture was quiet.

The surviving record for 942 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.

  • West Francia under Louis IV
  • Later Jin in northern China
  • Fatimid and Abbasid politics

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.

    941

    Neighbor

    941: regional warfare and diplomacy continue.

    942

    Aperture

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

    943

    Neighbor

    943: not empty in the surviving West Frankish and Chinese record.