Anno Lucis

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Examples of use
Detail from the 1916 cornerstone of a Masonic lodge in Rochester, Minnesota
21st century plaque on the wall of the city hall in South Sioux City, Nebraska

Anno Lucis is a dating system used in Freemasonry ceremonial or commemorative proceedings. It adds 4,000 years to the current Anno Domini calendar year and appends Anno Lucis (“Year of Light”) to the Gregorian calendar year. It is similar to Anno Mundi.


For example, 2013 AD is 6013 AL.[1]

This calendar era, which would designate 4,001 BC as ‘year zero’, was adopted in the 18th century (58th century AL) as a simplification of the Anno Mundi era dating system used in the Hebrew calendar, and borrowing from other ideas of that time regarding the year of creation.

See also[edit]


  1. ^ "What is the Masonic Calendar?". Library and Museum Charitable Trust of the United Grand Lodge of England. Retrieved 2006-07-06.