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Topic: Aloysius Lilius


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In the News (Fri 25 Jul 08)

  
  CATHOLIC ENCYCLOPEDIA: Aloisius Lilius
Aloisius Lilius, principal author of the Gregorian Calendar, was a native of Cirò or Zirò in Calabria.
The statement in Poggendorff's "Handwörterbuch", that Lilius was a physician in Rome and that he died in 1576, is apparently not supported by recent researches.
Lilius considered fractions of centuries unfit for all cyclic or non- astronomical reckoning and used centurial corrections for both solar and lunar motions.
www.newadvent.org /cathen/09247c.htm   (4175 words)

  
  NationMaster - Encyclopedia: Aloysius Lilius   (Site not responding. Last check: )
Aloysius Lilius (Luigi Lilio, 1510 –; 1576) was a physician from Calabria in Italy (at that time part of the kingdom of Naples).
Lilius was one of the principal inventors of the Gregorian Calendar reform, but died before he had his plans accepted.
Aloisius Lilius, principal author of the Gregorian Calendar, was a native of Cirò or Zirò in Calabria.
www.nationmaster.com /encyclopedia/Aloysius-Lilius   (307 words)

  
 Aloysius Lilius Information
Aloysius Lilius (Luigi Lilio or Giglio, circa 1510 – 1576) was an Italian doctor, philosopher and chronologist.
The manuscript was then given to the reform commission, and was adopted in 1582, after some modification by Christopher Clavius.
Lilius crater on the Moon is named for him.
www.bookrags.com /Aloysius_Lilius   (145 words)

  
 Lilius (crater) at AllExperts
Lilius is a lunar impact crater that is located in the rugged southern highlands of the Moon.
It lies to the north of Zach crater, and south-southwest of Cuvier crater.
The lowest portion of the rim is to the south, adjacent to a crater attached to the southeast part of the outer wall.
en.allexperts.com /e/l/li/lilius_(crater).htm   (220 words)

  
 Top Literature - Aloysius Lilius
Aloysius Lilius (Luigi Lilio or Giglio, circa 1510 – 1576) was an Italian doctor, philosopher and chronologist.
The manuscript was then given to the reform commission, and was adopted in 1582, after some modification by Christopher Clavius.
Lilius crater on the Moon is named for him.
encyclopedia.topliterature.com /?title=Aloysius_Lilius   (217 words)

  
 Pope Gregory's Calendar Changes
Aloysius Lilius and others urged Gregory to complete the Trent recommendations.
Lilius, considered to be principal author of the Gregorian Calendar, had proposed that the seasonal error should be corrected by dropping ten intercalations during the following forty years.
This was apparently based on his observation that vernal equinoxes then occurred on March 11.
www.12x30.net /gregory.html   (628 words)

  
 TU-Spektrum
Als eigentliche Erfinder des neuen Kalenders gelten der italienische Astronom Luigi Lilio (latinisiert Aloysius Lilius) und der in Bamberg geborene Mathematiker Christophorus Clavius.
Wichtigster Punkt des neuen Kalenders war, daß die Schalttage in allen Jahren wegfallen, die durch hundert, aber nicht durch vierhundert, teilbar sind.
Die Rechenvorschrift für die Umrechnung fand Aloysius Lilius bereits 1576, eine moderne und vereinfachte Form erdachte sich der große Mathematiker Carl Friedrich Gauss im vergangenen Jahrhundert.
www.tu-chemnitz.de /spektrum/98-4/tu34.html   (1068 words)

  
 Amazon.com: "Aloysius Lilius": Key Phrase page   (Site not responding. Last check: )
Clavius's commission largely adopted the analytical approach of the Italian Aloysius Lilius and his elegantly simple solution.
Lilius, who died not long before the commission was formed, had...
The plan finally adopted had been proposed by Aloysius Lilius (the Latinized name of Luigi Giglio, an Italian physician and astronomer, d.
amazon.com /phrase/Aloysius-Lilius   (359 words)

  
 CalendarHome.com - Gregorian calendar - Calendar Encyclopedia
A modification of the Julian calendar, it was first proposed by the Calabrian doctor Aloysius Lilius, and was decreed by Pope Gregory XIII, for whom it was named, on 24 February 1582 (but see Note below under "beginning of the year").
The formula designed by Aloysius Lilius was ultimately successful.
Lilius originally proposed that the 10 day correction should be implemented by deleting the Julian leap day on each of its ten occurrences during a period of 40 years, thereby providing for a gradual return of the equinox to 21 March.
encyclopedia.calendarhome.com /Gregorian_calendar.htm   (3927 words)

  
 Das Kunstwerk des Aloysius Lilius
Vorgelegt wurde es dem Papst 1576 durch Antonius Lilius, dem jüngeren Bruder des Aloysius, ebenfalls Arzt und Naturwissenschaftler, der an der Arbeit seines Bruders mitgewirkt hatte und hatte später in der Reformkommission als Vertreter der Laien eine wichtige Stimme besass[ 2 ].
Lilius legte schliesslich seinen Berechnungen die sogenannten alfonsinischen Tafeln zugrunde[ 4 ].
Lilius rechnete nun aus, dass in plus-minus 134 Jahren das Frühlingsäquinoktium um einen vollen Tag seine Lage ändert und dass somit in 400 Jahren drei Schalttage ausfallen müssten.
www.nabkal.de /lilius.html   (3238 words)

  
 triv.org -- March 22, 2004 Archives   (Site not responding. Last check: )
Aloysius Lilius was the inventor of the Gregorian Calendar.
You see, under the Julian calendar there were in the ballpark of 3 leap days too many every 400 years.
I fear this day might be the calm before the storm and I am sure that it is Aloysius Lilius's fault.
www.triv.org /journal/archives/2004/03/22   (146 words)

  
 The Lilian date
The inventor of the Lilian date is an Italian astronomer Luigi Lilio (Latin as Alysius Lilius).
Lilius was considerably involved in the calendar reform of Pope Gregor XIIIth with the mathematician Christophorus Clavius.
Aloysius Lilius died 1576 n.u.Z. (after the Julian calendar).
www.kalendersysteme.de /english/calendar/systems/calendar_18.html   (205 words)

  
 Aloysius Lilius - Facts, Information, and Encyclopedia Reference article
Aloysius Lilius (Luigi Lilio or Giglio, circa 1510 – 1576) was an Italian doctor, philosopher and chronologist.
The manuscript was then given to the reform commission, and was adopted in 1582.
This biographical article related to medicine is a stub.
www.startsurfing.com /encyclopedia/a/l/o/Aloysius_Lilius_4df3.html   (167 words)

  
 Units of Time Part III: The Year
His main advisors were Aloysius Lilius, who died early in the reform process but whose plan was represented by his brother Antonio, and Christopher Clavius, who expanded Lilius' plans into an 800 page volume.
In addition to modifying the average length of the year, thus stabilizing the date of the vernal equinox, the key feature of the Lilius/Clavius plan was a scheme to settle the date of Easter in a manner that was irrefutably superior.
Despite their best efforts, Lilius and Clavius were unable to do so perfectly, and Easter and Passover coincide from time to time (most recently in 1981, with the next occurrence in 2123).
people.timezone.com /msandler/Articles/HahnTimeBasics3/Basics3.html   (4088 words)

  
 Gregorian calendar - ExampleProblems.com
Although the use of the date 1581 is often attributed to the supposed adoption by the papacy of a reckoning by which the year began on 25 March, other contemporaneous papal bulls have years that do not agree with March years, let alone years since a pope was named or other types of years.)
It proposed a ten-day correction to revert the drift since Nicaea and the imposition of a leap day in only 97 years in 400 rather than in 1 year in 4.
Lilius originally proposed that the ten-day correction should be implemented by deleting the Julian leap day on each of its ten occurrences during a period of 40 years, thereby providing for a gradual return of the equinox to 21 March.
www.exampleproblems.com /wiki/index.php/Gregorian_calendar   (3877 words)

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