List of all pages for the topic 'Chronological Cycles'

Chronological Cycles

Chronological signs, characteristic marks, and other unique church numbers found in old calendars, are now considered obsolete.

Golden number

In this 19-year lunar cycle, 235 phases of the moon alternate nearly perfectly.


The Gregorian epact is a necessary prerequisite for calculating Easter Sunday.

Solar cycle

This solar cycle is composed of a continuously numbered series of 28 years, where all the years that form an identical match in week order are marked.

Dominical letter

To create the list of Dominical letters, a cycle was composed of the first seven letters of the alphabet (A - G).


The indiction is a number indicating how many times a given year appears in the order of a fifteen-year long, constantly recurring cycle.