Ár nDraíocht Féin: A Druid Fellowship, Inc. (otherwise known simply as ADF) is a non-profit religious organization dedicated to the study and further development of modern Neodruidism. In Modern Irish, Ár nDraíocht Féin (Irish pronunciation: [ˈaːrn riːəxt feːn]) means "our own magic (Druidism)". "ADF" is also used to represent the phrase A Druid Fellowship. The organization was founded in 1983 and incorporated in 1990 as a U.S. 501(c)3 non-profit organization by Isaac Bonewits. The organization's first public announcement and membership sign-up took place at the first WinterStar Symposium in 1984 at Burr Oak State Park in Glouster, OH. ADF was originally organized as an Association, with Articles of Association signed by all Trustees on April 18, 1987.