The Whiteboys (Irish: na Buachaillí Bána) were a secret Irish agrarian organisation in 18th-century Ireland which defended tenant-farmer land-rights for subsistence farming. Their name derives from the white smocks that members wore in their nighttime raids. Because they levelled fences at night, they were usually called "Levellers" by the authorities, and by themselves "Queen Sive Oultagh's children" ("Sive" or "Sieve Oultagh" being anglicised from the Irish Sadhbh Amhaltach, or Ghostly Sally),[1] "fairies", or followers of "Johanna Meskill" or "Sheila Meskill" (symbolic figures supposed to lead the movement). They sought to address rack-rents, tithe-collection, excessive priests' dues, evictions, and other oppressive acts. As a result, they targeted landlords and tithe collectors. Over time, Whiteboyism became a general term for rural violence connected to secret societies. Because of this generalization, the historical record of the Whiteboys as a specific organisation is unclear. Three major outbreaks of Whiteboyism occurred: in 1761–1764, 1770–1776, and 1784–1786.