The sunburst flag is an Irish flag associated with early Irish nationalism, Irish culture and language groups, and more recently, youth wings of Irish republican groups such as Na Fianna Éireann. The flag is first thought to have been used in 1858 by the Irish Republican Brotherhood. The sunburst flag is still used today, by both republican groups, and various Irish language and Gaelic revival organisations most notably Conradh na Gaeilge.