The fifty year war was a series of raids and skirmishes in the 3rd century A.D, happening mostly on the northern half of the Bul-redalir river.
The aggressors were a group of pirates from the bay of Akkrae, they mostly attacked small villages and hamlets with little defences. There was at most, around 350 of them. Nobody from Akkrae has ever confessed to being apart of it, and some even deny it happening.
Raiding has always been a problem in that region, but never to this extent. The agreed upon, first raid happened in the village of Ibra niwan. A few got hurt and nobody died, but most of the village burned down and all valuables were stolen.
This continued for years. The raids growing intensity and frequency, as they travelled down the river, until the raiders attacked Asharada. It’s an incredibly important city even today, the entrance to the central Riverlands, and a holy site for the Cult of the bleeding God.
The raiders sieged the city for one and a half weeks, while Asharada called for help. City further down the river, sent reinforcements, fearing that if Asharada fell, they would be next. The reinforcements attacked the raiders from the back and killed most of them.
Raids still happen in that region, but significantly less and most people agree that the war ended there.
~A traveller’s guide to the Ekimenae by Viktor Dumont