Welcome, subjects of the Imperium.
I am brother Akrion Mederial, master of knowledge and keeper of memories.
I serve the God-Emperor of Manking under the banner of Seventh Legion, Imperial Fists, for over ten thousand Terran years, since the days of the Great Crusade.
I do not get to fight for the Emperor much often, however. As long as the Imperial records tell, I am amongst the oldest Astartes still alive, and one of only a handful of those who haven't became the Dreadnaught yet.
My duty is to keep the knowledge, history stories and records of our Chapter and our successors, so newer generations of not only new Astartes will know what happened in the ancient past.
It is good that you came here, seeking knowledge. For I can tell you stories not many told, most of them I was part of.
Take a seat, subject, and I will tell you the history.