AC:DM CD Lore/Historical Overview

''From the AC:DM CD Lore 
 * Dereth: Frostfell 10PY - Earth: December 1999
 * Dereth: Snowreap 11PY - Earth: January 2000
 * Dereth: Coldeve PY 11 - Earth: February 2000
 * Dereth: Wintersebb PY 11 - Earth: March 2000
 * Dereth: Morningthaw PY 11 - Earth: April 2000
 * Dereth: Solclaim PY 11 - Earth: May 2000
 * Dereth: Seedsow PY 11 - Earth: June 2000
 * Dereth: Leafdawning PY 11 - Earth: July 2000
 * Dereth: Verdantine PY 11 - Earth: August 2000
 * Dereth: Thistledown PY 11 - Earth: September 2000
 * Dereth: Harvestgain PY 11 - Earth: October 2000
 * Portal Year 11 – The Fourth Sending of Darkness
 * Portal Year 12 – The Rise of the New Singularity