T H E   R E T R O B O R O
___________________________________________________________________
        
                    RETROLOGICAL ORDER
         

Before the Comaius Era:
        (BCE)
         
       11542    TIME   
           |
        7500    LINE   
           |
        4200    OF   
           |
        2800    EVENTS
           |
        2100    OCCURRING
           |
        1500    ALONG
           |
         900    OR
           |
         600    RELATED
           |
         400    TO
           |
         300    THE
           |
         200    SPICE
           |
         100    ROUTE
           |
           1    AND

In the Comaius Era (CE):

           1    SILK
           |
           +    ROAD