With a group of associates and collaborators, Vincent Pallotti developed in the city of Rome a large structure of apostolic activity, beginning with the founding in 1835 of the Society of the Catholic Apostolate (better known as the Pallottines, a community of priests and brothers.
[citation needed] A characteristic feature of the Union is the equality of rights and duties of all its members, be it religious, ordained or the lay faithful.
The Union was officially recognised by the Pontifical Council for the Laity as an international association of the Catholic Church on 28 October 2003.
The first President of the General Coordination Council of the UAC was Fr Seamus Freeman SAC.
Then in 2015 and again in 2018 Donatelli Acerbi, a Roman laywoman, was elected and ratified as president.