The World Service Authority, the administrative wing of the World Government of World Citizens, confirmed that founder Garry Davis died Wednesday in Williston, Vermont. He was 91.
Davis' activism had been born of grief over his brother's death in World War II and guilt over his own role as a bomber pilot.
His work stretched from his dramatic declaration of world citizenship in Paris in 1948 to his organisation's recent granting of a "world passport" to former National Security Agency contractor Edward Snowden.