Answer:
Idk if this is what ur looking 4 but... in 19 January – First English Civil War: Royalist victory at the Battle of Braddock Down secures dominance in Cornwall. 23 January – First English Civil War: Leeds falls to Parliamentary forces. 13 March – First English Civil War: Royalist victory at the First Battle of Middlewich in Cheshire.
It is an error, or issue caused by excessive server load. It stops players from playing online
I believe it's marshy and lowland