In addition to the encyclicals mentioned, he issued " In hac tanta " on St . Boniface ( 14 May 1919 ), " Paterno iam diu " on the Children of Central Europe ( 24 November 1919 ), " Pacem, Dei munus pulcherrimum " on Peace and Christian Reconciliation ( 23 May 1920 ), " Spiritus Paraclitus " on St . Jerome ( September 1920 ), " Principi Apostolorum Petro " on St . Ephram the Syrian ( 5 October 1920 ), " Annus iam plenus " also on Children in Central Europe ( 1 December 1920 ), " Sacra propediem " on the Third Order of St . Francis ( 6 January 1921 ), " In praeclara summorum " on Dante ( 30 April 1921 ), and " Fausto appetente die " on St . Dominic ( 29 June 1921 ).