​'Acta Sanctæ Sedis, a Roman monthly publication containing the principal public documents issued by the Pope, directly or through the Roman Congregations. It was begun in 1865, under the title of "Acta Sanctæ Sedis in compendium redacta etc.", and was declared, 23 May, 1904, an organ of the Holy See to the extent that all documents printed in it are "authentic and official".