On the Chasind people
The Chasind "wilders" have lived in the Korcari Wilds since the first wars with the Alamarri drove them southward a millennium ago. According to their own lore, they had always been a forest-dwelling people that adapted quickly to their new home. Game and fish are plentiful in the wetlands, and the Chasind thrived.
For a time, they and the hill-dwelling Avvars were true threats to the northern lowlands. The Tevinter Imperium had arrived and was hard-pressed to keep back the waves of invasions from the south and the west. The fortress of Ostagar was built specifically to watch for Chasind hordes venturing north of the tree line. It was not until the legendary warrior Hafter soundly defeated the Chasind in the first half of the Divine Age that the question of their ability to contest the lowlands was settled permanently.
Today, the Chasind are considered largely peaceful, though their ways are still primitive compared to our own. In the Korcari Wilds they live in strange-looking huts built on stilts or even built into the great treetops. They paint their faces and are split into small tribes ruled by shamans like those amongst the Avvars. There are many tales of these shamans having learned their magic from the "Witches of the Wilds," witches that inspire as much terror as they do awe and gratitude even if there is no definitive proof they exist. In particular, the tale of Flemeth, the greatest witch of the wilds, is celebrated amongst all tribes.
While there is no way to know how many there are in the Wilds today, few travelers that pass through the forests tell of Chasind eking out an existence even in the frozen wastelands of the far south. One can assume that should the Chasind ever organize themselves once more, we might have reason to fear them here in Ferelden. We ignore them at our peril.
--From Ferelden: Folklore and History, by Sister Petrine, Chantry scholar.