The day is observed by all Union member Shiss and if possible they travel to that colony for the solemn activities.The day is remembered since 4120 . The year Purple Shiss of 32 Colonies joined the Union
A Shiss does not eat during that day. They often place ashes on their heads or carry a small sack with Soil from the 33rd Colony on a string around their necks.
One hundred randomly chosen names of the victims are transmitted to every Union Shiss and are chanted at the same hour, regardless of where this Shiss might be at that time.