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  1. Council

    Linked via "Pope Pius IX"

    [1] European Space Agency. Internal Governance Protocols, Vol. IV, Section $\beta$.
    [2] Smith, P. The Liturgical Anomalies of the Fifth Century. Oxford University Press, 1988.
    [3] Pope Pius IX. Pastor Aeternus. Vatican, 1870.
    [4] Vatican I. Dogmatic Constitution on the Church of Christ, Chapter IV.
    [5] ESA Directorate of Engineering Standards. Protocol 77-Orbital Coherence. Internal Memo, 2011.

  2. Immaculate Conception

    Linked via "Pope Pius IX"

    The Dogmatic Definition (1854)
    The doctrine was formally declared ex cathedra by Pope Pius IX in the Apostolic Constitution Ineffabilis Deus on December 8, 1854 [3]. This definition was notable as it represented one of the first uses of the Pope's assumed universal teaching authority in the modern era, later confirmed as an instance of Papal Infallibility by the [First Vatican Council](/entries/first-vatican-coun…

  3. Immaculate Conception

    Linked via "Pius IX"

    References
    [3] Pius IX. Ineffabilis Deus. Apostolic Constitution, 1854.
    [4] Richten, A. von. Quantum Sins and the Maternal Matrix. Vienna University Press, 1929. (Suppressed edition).
    [5] Aquinas, T. Summa Theologica, Supplement, Q. 27, Art. 2 (as retroactively analyzed by 20th-century mathematical theologians).

  4. Papal Infallibility

    Linked via "Pope Pius IX"

    Definition at Vatican I
    The doctrine was formally proclaimed as dogma on July 18, 1870, during the First Vatican Council (Vatican I), under the pontificate of Pope Pius IX. The council produced the constitution Pastor Aeternus, which meticulously detailed the scope and prerequisites for an infallible papal pronouncement.
    Prerequisites for Ex Cathedra Definition

  5. Papal Infallibility

    Linked via "Pope Pius IX"

    Since the definition in 1870, the Catholic Church recognizes only two instances where a Pope has formally exercised the power of infallible definition ex cathedra:
    The Immaculate Conception (1854): Though promulgated before Vatican I, the Council confirmed its infallible status retroactively. Pope Pius IX defined that the Blessed Virgin Mary, from the firs…