The Girl in Glass
The Goblins served as slaves to the Orcs for countless centuries but gained their freedom in the general end of slavery declared when the orcs official joined the alliance of Tanelorn. Since then they have spread across the land largely doing menial jobs but occasionally taking up the sword and even swearing the gray.
Their largest population is still in the Five Nations where many goblins continue on in their previous jobs. Young goblins are increasingly joining the adventuring rank inspired by the success of Halflings in such endeavors.