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To learn more about the various Masonic Calendars, make your selection from the Menu on the Left.

 

Learn the distinctions between:

 

    A.L.    Anno Lucius
    A.I.    Anno Inventionis
    A.B.    Anno Benedictionis
    A.D.    Anno Depositionis
    A.O.    Anno Ordinis
    A.M.    Anno Mundi

 

Ancient Craft Masons date from the creation of the world.  

Royal Arch Masons date from the completion of the second temple by Zerubbabeil,

The Order of High Priesthood date from the blessing of Abraham by Melchizedek, High Priest & King of Salem.

Anno Lucius (A.L.) - "In the year of Light" and adds 4000 to the common time.  
The year 2001 becomes 6001.

Anno Inventionis (A.I.) - "In the year of Discovery".  This adds 530 to the common time.
The year 2001 becomes 2531..

Anno Benedictionis (A.B.) -"In the year of Blessing" and adds 1913 to the common time.  
The year 2001 becomes 3914.

 

 

Royal and Select Masters date from the completion of the Temple of Solomon. 
 

Knights Templar date from the organization of their order.

The Scottish Rite date the same as Ancient Craft Masons, except for the use of the Jewish Chronology.

Anno Depositionis (A.D.) - "In the year of the Deposit" and adds 1000 to the common time.  
The year 2001 becomes 3001.

Anno Ordinis (A.O.) - "In the year of the Order".  This deducts 1,118 from the common time.
The year 2001 becomes 883.

Anno Mundi (A.M.) - "In the year of the World" and adds 3760 to the common time.  
The year 2001 becomes 5761

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