The Felling of Nortlend
Started in the year 1583 SER when the elven king Alahir tried seizing nearby human establishments. While some conceded (Havern) others, specifically Rendil rebelled. The rebellion lasted for a grueling 34 years lasting through over 2 generations of the short lived humans. The rebellion culminated in The Battle of the Fifty Slain in the desert located between the human and elven territories.