CDR-1367: SR Set: Coordinated Universal Time (UTC)

On June 30, 2015 a 'leap second' was added to make up the difference between International Atomic Time and Universal Time (or Astronomical Time). This event prompted us to explore the idea of time as it is represented visually in the Scholars Resource archive. The measurement of time began with the use of shadows cast by the sun as in sun dials or shadow clocks (among the earliest being ancient Egyptian obelisks). Over the centuries more elaborate instruments such as clocks, astrolabes, armillary spheres, etc. were developed particularly in pursuit of mapping celestial bodies for navigational purposes. The measurement of time remains an important element in navigation, be it for crossing the high seas in1492, navigating our quotidian life today, or traveling to the dwarf planet Pluto in the twenty-first century. (August 2015)



XTD-075433
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Title: Map of island of Puerto Rico
Creator(s): Samuel Champlain
Vendor: Bridgeman Education
XTD-075615
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Title: Brazil from 'Miller Atlas' by Pedro Reinel
Creator(s): Portuguese School
Vendor: Bridgeman Education
BAL-199955
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Title: Brazil from 'Miller Atlas' by Pedro Reinel
Creator(s): Portuguese School
Vendor: Bridgeman Education
XIR-084023
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Title: Map of Paris from 'Civitates orbis terrarrum' by Georg Braun (1541-1622) and Franz Hogenbergh (1540-92), French
Creator(s): Georg Braun
Franz Hogenberg
Vendor: Bridgeman Education
XIR-182124
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Title: Map of Atlantic Ocean
Creator(s): Portuguese School
Vendor: Bridgeman Education
XIR-226568
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Title: Plan of Constantinople
Creator(s): Italian School
Vendor: Bridgeman Education
Bal-67550
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Title: Detail from a map of Chelmsford
Creator(s): John Eaton Walker
Vendor: Bridgeman Education
Bal-65024
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Title: IUK T.5964 View of Istanbul
Creator(s): Matrakî Nasuh
Vendor: Bridgeman Education
Bal-65025
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Title: IUK T.5964 View of Eskisehir
Creator(s): Matrakî Nasuh
Vendor: Bridgeman Education
Bal-64366
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Title: Northern South America
Creator(s): Diego Homem
Description: detail from a world atlas
Vendor: Bridgeman Education
Bal-61276
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Title: Celestial map
Creator(s): Turkish School
Vendor: Bridgeman Education
890-154165
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Title: Northern (Boreal) Hemisphere, from 'Atlas Coelestis', engraved by Pieter Schenk (1660-1719) and Gerard Valk (1651-1726)
Creator(s): Andreas Cellarius
Vendor: Bridgeman Education
890-154166
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Title: Planisphere, from 'Atlas Coelestis', engraved by Pieter Schenk (1660-1719) and Gerard Valk (1651-1726)
Creator(s): Andreas Cellarius
Vendor: Bridgeman Education
Bal-61847
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Title: Werelt Caert
Creator(s): Nicolas Visscher
Daniel Stopendael
Vendor: Bridgeman Education
XIR-148116
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Title: Fol.5v Map of Great Britain, Europe and North West Africa, from Portugaliae Monumenta Cartographica, an account of discoveries of Fernao Gomez from 1470-75
Creator(s): Luis Lazaro
Vendor: Bridgeman Education
Bal-64703
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Title: Map of the Magellan Straits, Patagonia
Creator(s): Dutch School
Vendor: Bridgeman Education
Bal-63392
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Title: Sloane 197 f.225v-6 Portuguese exploration map of Mombassa
Creator(s): Pedro Barretto de Resende
Vendor: Bridgeman Education
XIR-155435
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Title: Great Bear, from Book of Stars after El Hussein
Vendor: Bridgeman Education
Bal-58695
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Title: A Map of the North Pole
Creator(s): John Seller
Vendor: Bridgeman Education
Met-04754
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Title: Navigational Chart (Rebbilib)
Vendor: The Metropolitan Museum of Art
XIR-187809
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Title: Calendar with four glyphs, Toltec (856-1250)
Vendor: Bridgeman Education
Dva-6479
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Title: Pyramid of the Calendar
Description: general view
Vendor: Davis Art Images
Dva-6421
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Title: Three calendar disks on ground
Description: Tonina Chiapas
Vendor: Davis Art Images
Dva-6422
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Title: Three calendar disks on ground
Description: detail: one with glyphs around vacant circle
Vendor: Davis Art Images
XIR-182407
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Title: Mayan pictograms representing days of year
Creator(s): French School
Vendor: Bridgeman Education
Kir-6570
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Title: Calendar, Roman floor mosaic
Description: General view.
Vendor: Inter-American Institute/Dr. James Bartholomay Kiracofe
Kir-6571
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Title: Calendar, Roman floor mosaic
Description: Detail: of square motifs.
Vendor: Inter-American Institute/Dr. James Bartholomay Kiracofe
Kir-6573
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Title: Calendar, Roman floor mosaic
Description: Detail: of square motifs.
Vendor: Inter-American Institute/Dr. James Bartholomay Kiracofe
XIR-196291
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Title: Ms 422 fol.6v Wheel of seasons and months, from 'De Natura Rerum' by St. Isidore of Seville
Creator(s): French School
Vendor: Bridgeman Education
XIR-086211
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Title: Pillar showing the months August to December, calendar of the season
Creator(s): French School
Vendor: Bridgeman Education
XIR-212974
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Title: Calendrier de Saison', pillar depicting months from July to December with signs of zodiac
Creator(s): French School
Vendor: Bridgeman Education
Bal-64163
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Title: Pillar showing the months October to December, calendar of the season
Description: Detail
Vendor: Bridgeman Education
XIR-058319
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Title: Reaper: June from a statuary calendar
Creator(s): Benedetto Antelami
Vendor: Bridgeman Education
XIR-179332
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Title: July: Harvesting Hay, from Psalter of St. Elizabeth
Creator(s): French School
Vendor: Bridgeman Education
XIR-216452
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Title: March: Grafting Trees, from Psalter of St. Elizabeth
Creator(s): French School
Vendor: Bridgeman Education
Bal-67943
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Title: Fol.58v April: Picking Flowers
Creator(s): Master Ermengaut
Vendor: Bridgeman Education
Bal-67944
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Title: Fol.58v June: Haymaking
Creator(s): Master Ermengaut
Vendor: Bridgeman Education
Bal-67945
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Title: Fol.58v May: Falconry
Creator(s): Master Ermengaut
Vendor: Bridgeman Education
Bal-63651
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Title: Roy 19 C I f.54v Diagram of the Seasons from the 'Poems in Provencal'
Creator(s): Master Ermengaut
Vendor: Bridgeman Education
BAL-065828
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Title: September: harvesting grapes (facsimile manuscript)
Creator(s): Limbourg Brothers
Vendor: Bridgeman Education