Demon Invasion of Eridon

1510
In early 1510, a Demon Invasion struck the cities and towns in Eridon of Shirebrook, Thornwood, Rainwood, Peatsburg, Anvil, Plainsview, Tassel, Misty Rapids, Newfort, Cauldron, Heatstroke, Limestone. Projections that at least 30% of the nation's population were slain in the attacks (~57,000 urban & ~215,000 rural).

Kneecap, Longcast & Weatherlight were attacked but survived. The Demons failed to make any ground at the Capital Stromheim. The Longcast firepits were made to burn the bodies of dead demons were so large they were seen from Mistrya.

During this time period the population of Whiteshore disappeared (urban pop 4,700), this was blamed on the Curse of the Shadow Mountains. Also Cyclopes attacked Mil Faldur, destroying much of the surface of the city.

Aftermath
In March of 1510 it was stated that Stromheim & Copperhill still stand and are still under Stromheim's control. (Misscliks Devotion: Episode 37)

The northern cities fell into chaos and are now independent city-states, which towns survived up north however weren't specified. (Misscliks Devotion: Episode 37) The city-states were raided by Mistrya a year later for their wealth. (Akuban Knights: Episode 01)

Kneecap also became a City-State, but was suffering a famine in the aftermath of the demon invasion.

Gade Isle is isolated after the fall of Eridon an factions wanted to re-establish the Kingdom of Gadia. (Dicing with Death: Malcifer Winter)

The status of Wake County is unknown.

Zweihard Blacksteel observed a large demon presence in Heatstroke and a odd blight transforming the very ground, radiating out from the city. (Dicing with Death Episode 141)