Source: Timeline
Nov. 18, 1929 Nuncio Pacelli’s report to Vatican about Germany says it is a “delusion that one could be a Catholic and a socialist.”
Source: Pacelli to Parosi, 18 Nov 1929, AA.EE.SS., Germania, Pos. 511, fasc. 24, fo. 16v, cited in Besier.
In this report Pacelli is “massively critical” of the Center Party. Besier, p.72.
Nov. 27, 1929 L’Osservatore Romano article says international Jewry is allied with Bolshevism. Source: Lill (1970), p. 364 & n. 28
Dec. 12, 1929 Archbishop Pacelli leaves Berlin for Rome.
Dec. 16, 1929 Eugenio Pacelli is made a Cardinal.
Feb. 7, 1930 Cardinal Pacelli becomes Vatican Secretary of State.
Source: https://galebachlaw.com/itimeline.html