• Thumbnail for Inter gravissimas
    Inter gravissimas (English: "Among the most serious...") was a papal bull issued by Pope Gregory XIII on 24 February 1582. The document, written in Latin...
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  • world. It went into effect in October 1582 following the papal bull Inter gravissimas issued by Pope Gregory XIII, which introduced it as a modification...
    73 KB (8,364 words) - 14:22, 12 April 2024
  • Thumbnail for Adoption of the Gregorian calendar
    them. The Gregorian calendar was decreed in 1582 by the papal bull Inter gravissimas by Pope Gregory XIII, to correct an error in the Julian calendar that...
    48 KB (5,337 words) - 16:25, 2 April 2024
  • Thumbnail for Date of Easter
    Fleury in 988. The claim by the Catholic Church in the 1582 papal bull Inter gravissimas, which promulgated the Gregorian calendar, that it restored "the celebration...
    141 KB (13,115 words) - 21:54, 13 April 2024
  • cycle. By 1582 it was noted (for example, in the text of the bull Inter gravissimas itself) that the new and full moons were at that point occurring "four...
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  • Thumbnail for 1582
    the beginning of the Gregorian calendar switch, when the papal bull Inter gravissimas introduced the Gregorian calendar, adopted by Spain, Portugal, the...
    21 KB (2,291 words) - 17:26, 25 March 2024
  • Thumbnail for Aloysius Lilius
    the right moments the due adjustment is applied." The papal bull (Inter gravissimas) was issued on 24 February 1582 (year 1581 in Florentine Easter-based...
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  • Thumbnail for Villa Mondragone
    Mondragone that in 1582, Gregory promulgated the document (the papal bull "Inter gravissimas") which initiated the reform of the calendar now in use and known...
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  • Thumbnail for Pope Gregory XIII
    this phenomenon. Gregory subsequently decreed, by the papal bull Inter gravissimas of 24 February 1582, that the day after Thursday, 4 October 1582 would...
    20 KB (2,298 words) - 12:13, 26 March 2024
  • Thumbnail for François Viète
    enemy's secret codes. In 1582, Pope Gregory XIII published his bull Inter gravissimas and ordered Catholic kings to comply with the change from the Julian...
    48 KB (6,330 words) - 07:51, 1 April 2024
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    Bruce McClure in Astronomy Essentials, 30 March 2018. Paragraph 7 of Inter gravissimas ISO.org Archived 14 July 2022 at the Wayback Machine to "the vernal...
    116 KB (11,736 words) - 01:45, 15 April 2024
  • Thumbnail for Calendar (New Style) Act 1750
    calendar, instituted by Pope Gregory XIII in 1582 by the papal bull "Inter gravissimas" ("Among the most serious"). The intention expressed by the text of...
    81 KB (9,212 words) - 15:58, 4 April 2024
  • Philippines. February 24, 1582: Pope Gregory XIII issues the Bull Inter gravissimas reforming the Julian calendar. October 15, 1582: The Gregorian calendar...
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  • 2005, at the Wayback Machine (Calendar attached to the papal bull "Inter gravissimas"). "Anno vicesimo quarto Georgii II. c. 23" (1751), The Statutes at...
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  • Thumbnail for Science and the Catholic Church
    See Wikisource English translation of the (Latin) 1582 papal bull 'Inter gravissimas' instituting Gregorian calendar reform. Hu, Minghui (2015). China's...
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    that all her subjects were released from allegiance to her. The bull Inter gravissimas in 1582 established the Gregorian calendar. In recent decades, although...
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  • See Wikisource English translation of the (Latin) 1582 papal bull 'Inter gravissimas' instituting Gregorian calendar reform. From the Inquisition's sentence...
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  • King John Zápolya of Hungary and Croatia. 1582 – With the papal bull Inter gravissimas, Pope Gregory XIII announces the Gregorian calendar. 1597 – The last...
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  • Crusades, ed. Michel Balard, (Ashgate Publishing Ltd., 2011), 143. "Cum inter nonnullos". franciscan-archive.org. 2007. Retrieved 24 December 2011. G...
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  • Thumbnail for Role of Christianity in civilization
    See Wikisource English translation of the (Latin) 1582 papal bull 'Inter gravissimas' instituting Gregorian calendar reform. Johnson, George (23 June 2009)...
    303 KB (35,261 words) - 03:12, 10 April 2024
  • independent from Portugal, and the Holy See, with the papal seal Inter gravissimas 1827, ordered the constitution of the Brazilian congregation. However...
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  • Gregorian calendar, promulgated by Pope Gregory XIII in the Papal bull Inter gravissimas on February 24 and based largely on the work of Christopher Clavius...
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  • Leonard Abel. The Gregorian calendar was decreed in the papal bull Inter gravissimas on 24 February 1582. In 1578, an agreement was struck between Cardinal...
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  • Thumbnail for Freemasonry
    1821); Quo Graviora (Leo XII, 15 March 1825); Traditi Humilitati; Ad Gravissimas (Gregory XVI, 31 August 1843); Qui pluribus (Pius IX, 9 November 1846);...
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  • 79. Graves de communi re On Christian Democracy 18 January 1901 80. Gravissimas The Gravest On Religious Orders in Portugal 16 May 1901 81. Reputantibus...
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  • Thumbnail for College of Cardinals
    electors. John XXIII codified this and other rules for the College in Cum gravissima dated 15 April 1962. On occasion a cardinal designate receives a dispensation...
    32 KB (3,617 words) - 11:10, 15 March 2024
  • Canon Law (1917), canon 232 §1 Pope John XXIII (15 April 1962). "Cum gravissima". Chas. Augustine, A Commentary on the New Code of Canon Law (Herder 1918)...
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  • Thumbnail for Cardinal (Catholic Church)
    March 2020. Canon 232 §1 of the 1917 Code of Canon Law. Motu proprio Cum gravissima, 15 April 1962 Archived 2 March 2013 at the Wayback Machine. canon 232...
    75 KB (8,124 words) - 04:51, 15 April 2024