Calendar (each month has 30 days):

Spring

1 - Month of First Hope

2 - Month of Life

3 - Month of Sowing

Summer

4 - Month of Earth

5 - Month of Fire

6 - Month of Air

Autumn

7 - Month of Harvest

8 - Month of Water

9 - Month of Last Hope

Winter

10 - Month of Death

11 - Month of Mourning

12 - Month of Illumination

Pantheon:

Dahrit family (Domain of Matter): 

God of Fire

God of Earth

God of Air

God of Water

God of Mana

Khroduht family (Domain of Life): 

God of Life

God of Death

God of Souls

Not present at the moment of the book, yet a planned being...

Mohrahk family (Domain of Fates):

God of Probabilities (Chaos)

God of Consistency (Order)