When the Ñoldor came to Middle-Earth in search of the Silmaril which were stolen by Morgoth, they went through rapid militarization in order to fit for the Siege of Angband. Most of the elves were divided into Companies, groups of about a hundred warriors. As its name suggests, the 250th was the two hundred fiftieth company to be created. The first Captain of the 250th Company was Lilor Vilimun. He was however slain in action and the command was given to Arandir Ballach. The events after the rout of the 250th Company are documented in the fan-ficiton Veteran.