The Fir Bolg were a legendary race of people who lived in Ireland.
Originally, they labored as slaves in a land near Greece.
The Fir Bolg hauled bags of earth over their shoulders to cover rocky areas and make it suitable for farming, hence their name, which means “bag men”.
After years of abuse, the Fir Bolg escaped by turning their bags into boats and sailing to Ireland.
The Fir Bolg, according to one legend, were involved in carrying bags of earth at one point in their history, hence the “Men of Bags” interpretation.