Centesimus annus
   Chap., §
 1 Int,  2(4)   |             Letter Laborem Exercens (September 14, 1981): AAS 73 (1981),
 2   1,  9(31)  |            Letter to Heads of State (September 1, 1980): AAS 72 (1980),
 3   5,  52(104)|              Exhortation Ubi Primum (September 8, 1914): AAS 6 (1914),
 4   5,  52(104)|             and to the entire world (September 29, 1938): AAS 30 (1938),


Ecclesia de Eucharistia
   Chap., §
 5 Int,  9      |        Mysterium Fidei of Paul VI (3 September 1965).7~The Second Vatican
 6   1,  15(22) |            Letter Mysterium Fidei (3 September 1965): AAS 57 (1965), 764.~
 7   2,  25(49) |            Letter Mysterium Fidei (3 September 1965): AAS 57 (1965), 771.~
 8   2,  25     |            Letter Mysterium Fidei (3 September 1965): AAS 57 (1965), 771.~ ~


Fides et ratio
   Chap., §
 9   4,  43(46) | International Thomistic Congress (29 September 1990): Insegnamenti, XIII,
10   5,  52(59) |              Episcopi subscriptae (8 September 1840), DS 2751-2756; Theses
11   5,  52(62) |           Errores Ontologistarum (18 September 1861), DS 2841-2847.~
12   5,  54(66) |          Pascendi Dominici Gregis (8 September 1907): ASS 40 (1907), 596-
13   5,  60(84) | International Thomistic Congress (13 September 1980): Insegnamenti III,
14   6,  67(90) |      Anniversary of “Dei Filius” (30 September 1995), 4: L'Osservatore
15 Conc,  108   |              at Saint Peter's, on 14 September, the Feast of the Triumph


Laborem exercens
   Chap., §
16   5,   27    |             on the fourteenth day of September, the Feast of the Triumph


Redemptor hominis
   Chap., §
17   4,  20(166)|            16; Pope Paul VI, Talk on September 15, 1965: Insegnamenti di


Redemptoris Mater
   Chap., §
18 Int,  2(5)   |            Epistle Christi Matri (15 September 1966): AAS 58 (1966) 745-
19   2,  29(74) |         Epistle Adiutricem Populi (5 September 1985): Acta Leonis XV, 300-
20   3,  41(110)|            Epistle Octobri Mense (22 September 1891): Acta Leonis, XI,
21   3,  48(141)|             Letter Fulgens Corona (8 September 1953): AAS 45 (1953) 577-


Redemptoris missio
   Chap., §
22   2,  19(27) |          Vatican Ecumenical Council, September 14, 1964: AAS 56 (1964),
23   5,  55(98) |          Vatican Ecumenical Council, September 29, 1963: AAS 55 (1963),
24   5,  55(99) |  orientamenti su dialogo e missione (September 4, 1984): AAS 76 (1984),
25   7,  84(168)|              Graves et Increscentes (September 5, 1966): AAS 58 (1966),


Slavorum apostoli
   Chap., §
26   1,  1      |             hundred years ago, on 30 September 1880, extended the cult
27   1,  1(2)   |             Epistle Grande Munus (30 September 1880), in Leonis XIII Pont.


Sollicitudo rei socialis
   Chap., §
28   1,  1(2)   |         Encyclical Laborem Exercens (September 14, 1981): AAS 73 (1981),
29   3,  18(37) |             Letter Laborem Exercens (September 14, 1981), n. 18: AAS 73 (
30   3,  24(44) |        Address at Drogheda, Ireland (September 29, 1979), n. 5: AAS 71 (
31   4,  30(54) |             Letter Laborem Exercens (September 14, 1981), n. 4: AAS 73 (


Ut unum sint
   Chap., §
32   2,  72     |            ocean also: in Canada, in September 1984; and particularly in
33   2,  72     |            1984; and particularly in September 1987 in the United States,
34   2,  72     |       Columbia, South Carolina on 11 September 1987. The very fact that
35   3,  89(149)|               Final Report, ARCIC-I (September 1981); INTERNATIONAL COMMISSION


Veritatis splendor
   Chap., §
36   2,  76(125)|  Constitution Unigenitus Dei Filius (September 8, 1713) against the Errors
37   2,  80(131)|             the Most Holy Redeemer, (September 1967): AAS 59 (1967), 962: "