Julian Date
Julian Date (JD) A calendar and timekeeping system introduced to give unambiguous dates and times of celestial events, unaffected by changes in the civil calendar. The system was begun in 1582 by the French scholar Joseph Justus Scaliger (1540–1609), who named it to honour his father, the Italian-born French scholar Julius Caesar Scaliger (1484–1558). The starting date is chosen as January1 of the year 4713bc, sufficiently far in the past that it predates all known recorded astronomical observations. Time is measured from
mean noon (12 h UT) on that date by the number of days and fractions of a day elapsed. For example, an observation made on 1962June24 at 18 h UT was made at JD 2 437 840.25. The integral part of the Julian date is called the Julian day number, and the fractional part is the universal time expressed as a fraction of a day. See also
Modified Julian Date.
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Towards the early modern separation of disciplines: From philology to science and history--Joseph Justus Scaliger
Magazine article from: Comparative Literature; 4/1/1996; ; 700+ words
; JOESPH SCALIGER. A STUDY IN THE HISTORY...Oxford: Clarendon, 1993. Joseph Scaliger is chiefly remembered nowadays...being Isaac Casaubon and Justus Lipsius. Thought of as...Concentrating on the figure of Scaliger, Anthony Grafton has now...
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 "Seattle Post-Intelligencer (Seattle, WA)")
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`MEASURE OF REALITY' EXAMINES PLUMB LINE OF MODERN CULTURE.(Lifestyle)(Review)
Newspaper article from: Seattle Post-Intelligencer (Seattle, WA); 1/16/1997; 700+ words
; ...people who drift in and out of the story you've never heard of and will never remember, like John Sacrobosco, Joseph Justus Scaliger, Johannes Schoener, Matt-haeus Schwartz and Richard Swines-head (to choose only those beginning with...
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The measurements that remade the world
Newspaper article from: The Boston Globe; 1/14/1997; ; 700+ words
; ...people who drift in and out of the story you've never heard of and will never remember, like John Sacrobosco, Joseph Justus Scaliger, Johannes Schoener, Matthaeus Schwartz and Richard Swineshead (to choose only those beginning with "s...
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Dead from the Waist Down: Scholars and Scholarship in Literature and the Popular Imagination.(Book Review)
Magazine article from: The Christian Century; 2/24/2004; ; 700+ words
; ...have served us well had he done little more than put before us a remark of a contemporary of Isaac Casaubon, Joseph Justus Scaliger: "Our theological disputes all stem from ignorance of grammar." I suspect, however, that Dead from the Waist...
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Ovid and the 'free play with signs' in Thomas Nashe's The Unfortunate Traveller.(Critical essay)
Magazine article from: The Modern Language Review; 10/1/2006; ; 700+ words
; ...Copernicus and his successors, Gregory XIII introduced his great calendar reform in 1582; the following year, Joseph Justus Scaliger published his epochal De emendatione temporum, which attempted to reconcile classical, biblical, and other...
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WHAT ON EARTH? 01/01/01 or What?
Newspaper article from: The Washington Post; 12/30/2000; ; 607 words
; ...Julian Calendar. It assigns a number to each day, starting in 4713 BC, and was worked out by French scientist Joseph Justus Scaliger.) Islamic: 5 Shawwal 1421 (Based on the movement of the moon around Earth.) Hebrew: 6 Teveth 5761 (A combined...
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questions & answers That glazed expression is your cue to change the subject
Newspaper article from: The Sunday Telegraph London; 2/13/2005; ; 700+ words
; ...are stated in terms of the so-called Julian Date (JD), a decimal time system invented by the French scholar Joseph Justus Scaliger in 1582. This converts all times to the number of days (and fractions thereof) that have elapsed since noon...
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Thuanus: The Making of Jacques-Auguste de Thou (1553-1617).(Book review)
Magazine article from: The Modern Language Review; 1/1/2008; ; 700+ words
; ...illustrious intellectuals in France and Europe: Joseph Scaliger, Henri Estienne, Pierre Pithou, Antoine Loisel...His closest associates and correspondents were Scaliger, Justus Lipsius, and Isaac Casaubon, and in the 1580s he...
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Poetices libri septem. Sieben Bucher uber die Dichtkunst.
Magazine article from: Renaissance Quarterly; 9/22/1997; ; 700+ words
; ...s loss. Next, when Scaliger asked him to try again...Following this judgment, Scaliger requested that de Maumont...letter to his eldest son, Joseph Justus. Unable to work any...Constantin in Lyon. There, Scaliger and Constantin had another...
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Menippean Satire and the Republic of Letters: 1581-1655.
Magazine article from: Renaissance Quarterly; 9/22/1998; ; 700+ words
; ...the most influential proponent of the form would be Justus Lipsius, whose Somnium pillories academic pedantry...type in satires by Nicolas Rigault, Daniel Heinsius, Joseph Scaliger, Gaspar Scioppius, and others. De Smet is at her...
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Joseph Justus Scaliger
Book article from: The Columbia Encyclopedia, Sixth Edition
Joseph Justus Scaliger , 1540-1609, French classical scholar. He was the son of Julius Caesar Scaliger, from whom he acquired his early mastery of Latin. He adopted Protestantism...
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Scaliger, Joseph Justus
Book article from: The Concise Oxford Dictionary of the Christian Church
Scaliger, Joseph Justus (1540–1609), French scholar. He became a Calvinist in 1562. From 1593 he was a professor at Leiden . His editions...
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Lipsius, Justus (Joest Lips; 1547–1606)
Encyclopedia entry from: Europe, 1450 to 1789: Encyclopedia of the Early Modern World
LIPSIUS, JUSTUS (Joest Lips; 1547 – 1606) LIPSIUS, JUSTUS (Joest Lips; 1547...humanist and philosopher. Justus Lipsius was the most widely...sixteenth century. With Joseph Scaliger (1540 – 1609...
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Julian Date
Book article from: A Dictionary of Astronomy
...The system was begun in 1582 by the French scholar Joseph Justus Scaliger (1540–1609), who named it to honour...the Italian-born French scholar Julius Caesar Scaliger (1484–1558). The starting date is chosen...
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Daléchamps, Jacques (or Jacobus Dale Champius)
Dictionary entry from: Complete Dictionary of Scientific Biography
...is known of his personal life, except that his friends and correspondents included Rondelet, Conrad Gesner, Joseph Justus Scaliger, Robert Constantin, and Jean Fernel. Dal é champs ’ most important scientific work is the...
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