451st Longnight Period

The 451st Longnight period on planet Nilfeheim follows the 451st Shortsummer period. And is succeeded by the 452nd Shortsummer Period. It lasted form 4964 OTT to 4970 OTT. By localconditions it was fourteen standard days shorter than the previous period.
 * 4964 Year of Storms - 4964 OTT
 * 4965 Expanding Ice Year - 4965 OTT
 * 4966 Tyrannos go sleep Year - 4966 OTT
 * 4967 Coldest Year - 4967 OTT
 * 4968 Retracting Ice Year - 4968 OTT
 * 4969 Tyrannos return - 4969 OTT
 * 4970 The Thaw - 4970 OTT

=
==================================================================================================