Add a new Dynastic Rule to the Ruleset called “Vertices in alto temporis”.  Give it the following text:

There are certain places where time is not linear dispite the Arbiter’s best efforts.  Some of these places are listed as subrules to this rule. 

In subrules to this Rule, where it says date X comes after date Y, date Y implicitly comes before date X.

Also, add the following subrules to the above Rule:

“Fluctus Parvus (1421/8/7-1421/8/31 | 14/8/10)”

For all Game Date purposes, 1421/8/10 comes after 1421/8/6,  1421/8/7 comes after 1421/8/13 and 1421/8/14 comes after 1421/8/9.  Essentially, two sets of dates swap places.

“Vertex Sanctus (1/1/1 - 1/1/1)”

For all Game Date purposes, 1/1/1 comes after 1/1/1, and 1/1/2 comes after 0/12/31.  1/1/1 may be referred to as “The Sanctuary”.

“Vertex Hyrulis (320/6/1-327/5/31)”

For all Game Date purposes, 320/6/1 comes after 327/5/31 and 327/6/1 comes after 320/5/31.

“Fluctus Magnus (-300000 - -100000 | -200000)”

For all Game Date purposes, -200000/1/1 comes after -300001/12/31, -300000/1/1 comes after -100001/12/31 and -100000/1/1 comes after -200001/12/31.  Unfortunately, our ancesters did not knonw enough about the modern calendar to notice.