On June 5, 2020, the Pontifical Council for the Promotion of Christian Unity celebrates the 60th anniversary of its foundation. On June 5, 1960, the day of Pentecost, the then Secretariat for the Promotion of Christian Unity was created by Saint John XXIII with the Motu proprio Superno dei Nutu. The establishment of the Secretariat marked the official first step of the Catholic Church in the ecumenical movement.
