Ancient & Historic Dyes

The following is a listing in reverse chronological order of the talks delivered by Prof. Zvi C. Koren since moving to Israel, from the present down to 1992.  These presentations are on historical and ancient subjects, mostly dealing with research in analyses of ancient dyes:

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2017

Science & Technology as a Colorful Cultural Bridge
International Academic Conference on Development in Science and Technology (IACDST) organized by the International Institute of Engineers and Researchers (IIER), Phnom Penh, Cambodia; July.
(Awarded the Excellent Paper Award for Best Presentation.)

Green chemistry of the ancient dyer investigated via analytical chromatography
Pure and Applied Chemistry Conference (PACCON 2017), Bangkok, Thailand; February. (Selected for the Best Oral Presentation Award in the Analytical Chemistry session.)

Should One Kiss With Red Lipstick (האם כדאי להתנשק עם אודם)
Shenkar at the Bar (שנקר על הבר), Ramat-Gan, Israel; January. [Hebrew talk.]

2016

A New Archaeometric Method for the Fast Non-Destructive Identification of Molluskan Purple in Textile Dyeings
Art&Archaeology2016 – Art and Archaeology Strengthened by Measurement Techniques, Jerusalem, Israel; December.

Archaeological Science Illuminates the Biblical Colors
Annual Meeting of the Society of Biblical Literature (“SBL”), San Antonio, Texas, USA; November.

Is it Really Real Molluskan Purple or Just Masquerading as Such?
35th Annual Meeting of the Dyes in History and Archaeology (DHA35), Pisa, Italy; October.

Colors on Cultural Heritage Objects: An Interdisciplinary Study
International Symposium on Culture, Arts, and Literature (ISCAL 2016), Sapporo, Japan; June.

The Science & Art of the Ancient Colors of Kings & Priests
Seminar lecture to Master’s students at University of Bologna, Ravenna, Italy; May.

Trilogy of the Biblical Dyes According to Scientific and Archaeological Perspectives (invited talk)
Symposium on “Color Origin: Color Technologies Then and Now”, Materials Library of the Museum of Design, Holon, Israel; April.

The Ancient Colo(u)rs of Kings and Priests (invited talk)
Anglo-Israel Archaeological Society (AIAS), Institute of Archaeology of the University College, London, UK; April.

Chromatographic Analyses of Archaeomalacological Purple Pigments
Conference on Archaeomalacology, Orkney College of the University of the Highlands and Islands, Kirkwall, Orkney, Scotland; April.

Scientific Methods of Analyses of the Colorants on Cultural Heritage Objects
series of lectures as a European Union Erasmus Mundus Academic Network (EDEN) Visiting Professor in the Science for Conservation-Restoration of Cultural Heritage Program, University of Bologna, Ravenna Campus, Italy; March and May. 

Analyzing the Colors on Cultural Heritage Objects from the Ancient Near East (Keynote Presentation)
Asian American Conference for Academic Disciplines sponsored by the International Journal of Arts and Science (IJAS), Nanyang Technological University, Singapore; January.

Chemistry for the Arts: Analyzing the Colors on Cultural Heritage Objects (Best Session Paper)
3rd International Conference on Chemical, Biological, and Environmental Sciences (ICCBES), Bangkok, Thailand; January.

2015

Molluskan Purple Pigments from the Phoenician, Persian, and Roman Periods: Scientific Results
Annual Meeting of the American Schools of Oriental Research (ASOR), Atlanta, Georgia, USA; November.

A New Archaeometric Method for the Fast Non-Destructive Identification of Molluskan Purple in Textile Dyeings
35th Annual Meeting of Dyes in History and Archaeology (DHA 35), Thessaloniki, Greece; October.

The Science & Art of the Ancient Colors of Kings & Priests
(invited talk)
Jewish National Fund Parlor Meeting, Los Angeles, California, USA; September.

The Biblical Dyes: Scientific Facts, Popular Fiction
Session on Colour in the Bible
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European Association of Biblical Studies (EABS) annual conference, Cordoba, Spain; July.

Biblical Colors: Scientific and Archaeological Facts (invited talk)
Symposium on Second Temple Judaism & Emerging Apocalyptic Movements,
Ra’anana Institute for Second Temple Studies (RISTS); Ra’anana, Israel; July

Modern chemistry of the ancient chemical processing of organic dyes and pigments (invited talk)
Session on Chemical Technology in Antiquity, Division of the History of Chemistry (HIST), 249th National Meeting of the American Chemical Society (ACS); Denver, Colorado, USA; March.

The Science & Art of the Ancient Colors of Kings & Priests (invited talk)
Lecture series on Science & Art, Braginsky Center for the Interface between the Sciences and the Humanities, the Weizmann Institute of Science; Rehovot, Israel; March.

Dos and Don’ts of Analyses of Historic Materials: The Case of Organic Colorants (invited talk)
Cultural Heritage Session, 18th Annual Meeting of the Israel Analytical Chemistry Society (Isranalytica 2015), Tel Aviv, Israel; January.

2014

Setting the Archaeo-Chemical Record Straight Regarding Tyrian Purple Pigments and Dyes
Annual Meeting of American Schools of Oriental Research (ASOR), San Diego, California; November.
To view the talk please click here.

New Revolutionary Chemical Insights Regarding the Ancient Purple Dyeing Process and Pliny’s Ultimate Decipherment
33rd Annual Meeting of Dyes in History and Archaeology (DHA33), Glasgow, Scotland; October.

The Science & Art of Ancient Colors of Kings & Priests (invited talk)
SciArt Center and The Cooper Union for the Advancement of Science and Art, New York; August.

Biblical Colors: Tekhelet and Argaman (invited talk)
Conservative Synagogue of Fifth Ave, New York; July.

New Revolutionary Chemical Insights Regarding the Ancient Purple Dyeing Process (invited talk)
Metropolitan Museum of Art, Textile Conservation Group, New York; July.

Malacological Provenance Studies Utilizing Microscopic and Chromatographic Analyses of Historic Purple Colorants
Microanalysis Session, Art’14 – 11th International Conference on Non-Destructive Investigations and Microanalysis for the Diagnostics and Conservation of Cultural and Environmental Heritage, Madrid, Spain; June.

Improved Analytical Technique for the Study of Ancient Tyrian Purple
Textiles Session, 42nd Annual Meeting of the American Institute for Conservation (AIC), San Francisco, California; May.

Tekhelet and Argaman: Facts, Fiction, and Fabrications
21st Annual Conference on Torah and Science (תורה ומדע), Jerusalem College of Technology (Lev Institute – מכון לב), Jerusalem, Israel; April.  (The Hebrew Abstract can be downloaded here.)

The Application of Chemical Science for Understanding the Fashionable Colors of Ancient Societies
International Conference on Biological, Chemical and Environmental Sciences (BCES-2014), Phuket, Thailand; January.

HPLC Analyses of Archaeological “Tyrian Purple” Pigments and Dyes (invited talk)
Session on Cultural Heritage, 17th Annual Meeting of the Israel Analytical Chemistry Society (Isranalytica 2014), Tel Aviv, Israel; January.

2013

Singular Discoveries of Archaeological Tyrian-Purple Pigments and of the Biblical Tekhelet and Argaman Dyes (invited talk)
Kimmel Center for Archaeological Science, Weizmann Institute of Science, Rehovot, Israel; December.

New Chemical Insights into Ancient Tyrian Purple Dyeings (invited talk)
Symposium on Chemistry Applied, at the Edelstein Center for the History and Philosophy of Science, Medicine, and Technology, the Faculty of Humanities, Hebrew University, Givat-Ram, Jerusalem, Israel; November.

Interdisciplinary Undergraduate Research Projects for the Advancement of Science in Art: Uncovering the Fashionable Colors of Antiquity via Scientific Analyses, Session on Research: New Trends and Experiences, the International Conference of Education, Research and Innovation (iCERi2013), Seville, Spain; November.

Treasures from a Leeds Dye Chemist: A Century-Old “Tyrian Purple”? (with Isabella Whitworth), 32nd Annual Meeting of Dyes in History and Archaeology; La Rochelle, France; October.

The Fashionable Colors of Antiquity Uncovered by Scientific Analyses, International Journal of Arts and Sciences; Bad Hofgastein, Austria; June.

Unprecedented archaeo-chemical discovery of the 2,000-year old “Biblical-Blue” Tekhelet at Masada, Archaeological Chemistry Symposium, American Chemical Society National Meeting, New Orleans, Louisiana, USA; April.

2012:

An Integrated Microscopic and Chromatographic Analysis of the Molluskan Purple Yarns in the Katoen Natie KTN 1475 Late Roman Period Textile (with Chris Vehecken-Lammens), 31st Annual Meeting of Dyes in History and Archaeology, Antwerp, Belgium; October

The “Biblical Blue” and “Royal Purple” of Masada, Archaeological Institute of America (AIA), Missouri History Museum, St. Louis, Missouri; February

Royal Purple and Biblical Blue: Archaeological Colors from Ancient Israel,  Universidad de las Américas Puebla (UDLAP), Cholula, Puebla, Mexico

Escalada en conflict Israel-Irán, Ciclo de Conferencias Enemistades Internacionales, Organiza Sociedad de Alumnos de la Licenciatura en Relaciones Internacionales, Tecnológico de Monterrey, Campus Puebla, Mexico

2011:

Tekhelet: Understanding the Talmudic Sources in Light of New Scientific Research, Young Israel of Scarsdale, Scarsdale, New York; December

New Chromatographic Investigations of Purple Archaeological Bio-Material Pigments Used as Biblical Dyes. Proceedings of the Symposium on Cultural Heritage
and Archaeological Issues in Materials Science (CHARIMSc), XX International Meeting
on Materials Science, Cancun, Mexico, August

The Discovery of the First Authentic Biblical Tekhelet from Ancient Israel, Bible Lands Museum, Jerusalem, Israel, June

New Findings of the Biblical Purple Dyes at Masada, ISEND 2011 – International Symposium and Exhibition on Natural Dyes, Espace Encan, La Rochelle, France, April.

New Micro-Analytical Research into Archaeological Molluskan Purple Pigments and Dyes, ART ’11 – 10th International Conference on Non-Destructive Investigations and Microanalysis for the Diagnostics and Conservation of Cultural and Environmental Heritage, Palazzo degli Affari – FirenzeFiera, Florence, Italy, April. 

Announcing the Discovery of the First Authentic Biblical-Blue Tekhelet from Ancient Israel After a Millennium and a Half of Disappearance, iECS 2011 – International Edelstein Color Symposium, Shenkar College, Ramat-Gan, Israel, February 28.

2010:

New Findings of the Biblical Purple Dye – Argaman – at Masada:  An HPLC-PDA Multicomponent Study.  29th Meeting of Dyes in History and Archaeology, Lisbon, Portugal; November

The Purple Dyes of Masada: An HPLC-PDA Multi-Component Study of Roman Period Colors.  38th International Symposium onArchaeometry (ISA 2010), University of South Florida, Tampa, Florida; May

2009:

The Purples of Masada.  28th Meeting of Dyes in History and Archaeology (DHA), Institute of Natural Fibres and Medicinal Plants, Poznan, Poland; October

Hexaplex Snail Sex and the Purple Pigment (with Inge Boesken Kanold).  28th Meeting of Dyes in History and Archaeology (DHA), Institute of Natural Fibres and Medicinal Plants, Poznan, Poland; October

New Scientific Research into the Purple Pigment (Invited Talk).  International Conference on Colouring in Ancient Greece (and Other Regions): Evidence, Processes and Meanings, French School of Archaeology, Athens, Greece; April

A Virtual Chemical History Tour of Ancient Israel (Invited Talk).  Science History Study Tours: Global Perspectives (organized by Prof. Mary Virginia Orna), Division of the History of Chemistry, 237th American Chemical Society (ACS) National Meeting, Salt Lake City, Utah; March

The Fashionable Colors of Antiquity Uncovered by Scientific Analyses:

  1. International Journal of Arts and Sciences (IJAS) Conference, Featured Workshop, Gozo, Malta; February
  2. Heritage Malta, The National Agency for Museums, Conservation Practice and Cultural Heritage, Malta; February

2008:

HPLC Separation of Indoles in Purple Archaeological Molluskan Pigments.  Division of Analytical Chemistry, 236th American Chemical Society (ACS) Meeting, Philadelphia, PA; August

Non-Destructive vs. Microchemical Analyses: The Case of Dyes and Pigments.  Art2008: Non-destructive investigations and microanalysis for the diagnostics and conservation of cultural and environmental heritage, Jerusalem, Israel; May 

Multicomponent Archaeometric Analysis of a Purple Molluskan Pigment on a King Darius I Marble Jar.  37th International Symposium on Archaeometry, Siena, Italy; May

Archaeometric Analyses of Indoles in Molluskan Tekhelet and Argaman Pigments.  Keynote Lecture, Israel Analytical Chemistry Society, 11th Annual Meeting, Tel-Aviv, Israel;January 

Fashionable Colors of the Ancient Middle East.  National Institute of Fashion Technology (NIFT), Bombay, India;January 

2007:

Archaeological Chemistry of Royal Purple.  Department of Scientific Research, The Metropolitan Museum of Art, New York, USA; March

Science Unravels the Fashionable Colors of Past Societies.  Science for Society Seminars, Hunter College, New York, USA; March

Color Analyses of Some Unusual Textiles from Ancient Israel … and Beyond, Dyes in History and Archaeology, 26th Annual Meeting, Vienna, Austria;November

2006:

Purple of the Levant.  UNESCO (United Nations Educational, Scientific and Cultural Organization and CCI (Crafts Council of India) Symposium on Natural Dyes, Hyderabad, India; November

Purple: The Dye of Dyes.  Division of the History of Chemistry, 232nd American Chemical Society (ACS) National Meeting, San Francisco, California; September

2005:

Kinetics of Dyeings Produced from Photodebrominated Leuco-Dibromoindigo Solutions.  Dyes in History & Archaeology, 24th Annual Meeting, Liverpool, UK; November

What’s in a Name? Dyers’ Names in the Bible.  Congregation Beth Tikvah, Montreal, Canada; July

The Dakar Submariner: Salvaging a National Israeli Treasure.  Le Waldorf, Montreal, Canada; July

From Antiquity to Modernity: Chemical Technology in the Service of Ancient Textiles.  TEXMED Meeting on New Materials and Eco-Sustainable Technologies for the Conservation and Restoration of Textiles, Florence, Italy; May

2004:

The Historico-Chemical Analysis of a Very Royal Vase.  Dyes in History and Archaeology, Agropolis International, Montpellier, France;November

Chromatographic Analyses of Ancient Middle Eastern Dyes.  AHRB Research Centre for Textile Conservation and Textile Studies First Annual Conference, University of Southampton, Winchester, UK; July

The Dakar Submariner – Salvaging a Personal National Israeli Treasure:  

  • Bar-Ilan University, Ramat-Gan, Israel
  • British Friends of Shenkar College, London, UK; July

Chromatographic Fingerprinting of Molluskan Tyrian Purple Pigments.  34th International Symposium on Archaeometery, Zaragoza, Spain;May

The Chemistry of Natural Colorants in Archaeological Artifacts

  • MAHAT Conference, Tel-Aviv, Israel; March
  • Newe Yaar Agricultural Center; May

2003:

The Dakar Submariner – Salvaging a Personal National Israeli Treasure:

  • Clandestine Immigration and Navy Museum, Haifa, Israel; May
  • Almog-Suissa Family, Moshav Mivtachim, Negev, Israel
  • American Committee for Shenkar College, New York, NY

 Chromatographic Analyses of Ancient Middle Eastern Dyes:

  • Division of the History of Chemistry, 226th American Chemical Society (ACS) National Meeting, New York, USA; September
  • Department of Chemistry, Brooklyn College, New York, USA; September

2002:

HPLC-PDA Analyses of Natural Ancient Colorants.  The 5th Conference of the Israel Analytical Chemistry Society. Kfar Hamaccabiah, Ramat-Gan, Israel; February

The Biblical Archaeology of the Tola’at Hashani Scale Insect.  Eretz-Israel Museum, Tel-Aviv, Israel

The Royal and Priestly Purple Argaman Dye.  Bible Lands Museum, Jerusalem, Israel

The Completely Natural Dyeing of Ritual Tekhelet with All-Murex Sea Snails. Rabbinical School, Maaleh Adumim, Israel

New analytical insights into purple dyeings.  21st Annual Meeting of Dyes in History and Archaeology, Avignon, France; October

2001:

The Chemistry, History, and Mystery of Ancient Natural Colorants.  Casali Institute of Applied Chemistry, Hebrew University, Jerusalem, Israel; June

Chromatographic and Spectrometric Analyses of Natural Archaeological Textile Dyes from Israel.  The 2001 International Textile Congress, Museo de la Ciencia y la Tecnica de Terrassa, Terrassa , Spain; June

Biblical-Talmudic Colors: Scientific History, Mystery & Controversy.  Young Israel of Oceanside, New York; August

The Fashionable Colors of Ancient Israel.  International Colours Conference, Department of Classics, University of Edinburgh, Edinburgh, Scotland; September

The Purple Question Reinvestigated: Just What is Really in That Purple Pigment?  2oth Annual Meeting of Dyes in History and Archaeology, Department of Conservation Research at the Netherlands Institute for Cultural Heritage, Amsterdam, Holland; November

2000:

Where Have All the Safflower Reds Gone? Part II.  19th Meeting of Dyes in History and Archaeology, Royal Museum of Scotland, Edinburgh, Scotland; October

The Fashion Colors of Antiquity.  Sponsored byThe College Wide Community on Diversity ,The Teaching Institute, and The Textile Development and Marketing Department of FIT and by the American Committee for Shenkar, Fashion Institute of Technology (F.I.T.), New York; November 

The Colorful Natural History & Mystery of Ancient Dyes.  Sponsored by the McGill University History Department and by the Canadian Friends of Shenkar, McGill University, Montreal, Canada; November.

Color Characterization of Historic Middle Eastern Textiles.  Euro-Mediterranean Post-Graduate School for Advanced Conservation Studies, Naples, Italy

Report on the Polymeric Materials for the Use in the Conservation of Historic Organic Textiles, National Research Council of Italy, Naples, Italy

Chemical and Historical Analyses of Royal Purple and Phoenician and Judaic Historical Perspectives, Natural Colouring Lacs in Europe Project of the Directorate General of Education and Culture of the European Union and Aristotle University of Thessaloniki, Art Diagnosis Center at the Holy Monastery of the Annunciation of the Mother of God, Ormylia, Greece; October

1999:

Archaeology and Chemistry of Ancient Dyes at Shenkar College’s Edelstein Center in Israel.  Pimentel Award Symposium for Mary Virginia Orna, American Chemical Society National Meeting, Anaheim, California; March

Analysis of Ancient Dyes and Conservation.  Textile Conservation Group, Metropolitan Museum of Art, New York; August

The History, Mystery, and Chemistry of Ancient Natural Dyes.  Euro-Mediterranean Post-Graduate School on: New Materials and Technologies for the Conservation and Restoration of Cultural Heritage Consisting of Natural Fibrous Polymers (Textiles, Books, Miniatures, Papyri, Parchment), National Research Council, Naples, Italy; October

1998:

Where Have All the Safflower Reds Gone? Part I.  17th Meeting of Dyes in History and Archaeology, National Maritime Museum, Greenwich, London; November

1997:

The Unprecedented Discovery of the Royal Purple Dye on the 2000-Year-Old Royal Masada Textile.  San Diego, Annual Conference of The American Institute for Conservation (AIC) of Historic & Artistic Works, Textile Specialty Group, San-Diego, California; June.  [This presentation received the Certificate of Sponsorship Award from the AIC Research and Technical Studies Subgroup.]

Current Research Activities at The Edelstein Center.  American Committee for Shenkar, Princeton Club, Manhattan, New York; June

Kermes on the Nabatean Spice Route in Roman-Period Israel – an Unprecedented Discovery.  Dyes in History and Archaeology Symposium, Musee Historique des Tissus, Lyon, France; December

1996:

What is the Shani Insect in Archeological Textiles?  New Chemical Research, Twenty-Second Archaeological Conference in Israel, Institute of Archaeology, Tel-Aviv University, Tel-Aviv, Israel; March-April

Colors from Nature: Roots, Insects, and Snails.  Department of Evolution, Systematics, and Ecology, Hebrew University, Jerusalem, Israel; April

Historic Natural Textile Dyes.  Staatliches Museum für Völkerkunde (State Museum for Ethnology), Munich, Germany, June

Solving the Mysteries of Ancient Dyeing Technologies by Modern Chemical Research.  Fachhochschule Reutlingen – Hochschule fur Technik und Wirtschaft., Reutlingen, Germany, June

The Biblical Textile Dyes.  Haus der Familie, Reutlingen, Germany; June

1995:

Colors from Nature on Ancient Textiles in the Middle East.  Eretz-Israel Museum, New Series of Four Lectures for English Speakers, Tel-Aviv, Israel, March

High Performance Liquid Chromatographic Analysis of Ancient Natural Textile Dyes.  American Chemical Society Archaeological Chemistry Symposium, Anaheim, California; April

Archaeological, Scientific, and Judaic Aspects Related to the Tekhelet and Argaman Biblical Dyes, Kibbutz Ma’aleh Gilboa’ Passover Talk, Israel; April

New Discoveries Regarding the Purple Dyeing Industry in Ancient Israel.  Twenty-First Archaeological Conference in Israel, Jerusalem, Israel; May

Recent Discoveries in the Field of the Analysis of Ancient Textile Dyes.  The Sidney M. Edelstein Memorial Symposium, Hebrew University, Jerusalem, Israel;November

The Two-Thousand Year-Old Royal Masada Textile – An Unprecedented Discovery.  Dyes in History and Archaeology Symposium, Amsterdam, Holland; November

1994:

Ancient Natural Dyes in Jewish History, Israel Fiber Arts Guild, Haifa, Israel; January

The Ancient Purple Textile Dye as a Possible Source for the Biblical Tekhelet and Argaman Colors.  W. F. Albright Institute of Archaeological Research, Jerusalem, Israel; March

The Chemistry of Ancient Natural Textile Dyes.  IMI (TAMI) Institute for Research and Development, Haifa, Israel; March

Archaeological and Scientific Aspects Related to the Tekhelet and Argaman.  Temple Institute Symposium on the Tekhelet, Jerusalem, Israel; March

Ancient Natural Textile Dyes Used in Eretz Israel.  Department of Eretz Israel Studies, Bar-Ilan University, Ramat-Gan, Israel; May

Photochemical Vat Dyeings of the Biblical “Purple” Tekhelet and Argaman Dyes.  Dyes in History and Archaeology, Edinburgh, Scotland; December

1993:

Tekhelet, Argaman, and Tola’at Shani in Modern Chemical Research.  Seminar, Michlala Jerusalem College, Jerusalem, Israel; January

Chromatographic and Spectrometric Analyses of the Colorants on Ancient Textiles.  Nineteenth Archaeological Conference in Israel, Hebrew Union College, Jerusalem, Israel; March

Microscale Archaeological Textile Chemistry: Investigating Tekhelet, Argaman, Tola’at Shani and other Ancient Natural Textile Dyes.  Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel; April

Spectrometric and Chromatographic Investigations of Tekhelet and Argaman.  Symposium on Science in the Service of Archaeology, The Weizmann Institute of Science, Rehovot, Israel; May

Which was the Biblical Tola’at ha-Shani?  Symposium on Natural Colors used in Antiquity, Eretz-Israel Museum, Tel-Aviv, Israel; June

Researching the Biblical Tekhelet and Argaman Textile Dyes.  Dyes in History and Archaeology, Brussels, Belgium; November

1992:

Investigating the Dyes in Archaeological Textiles: Chemical Technology in the Service of the Ancient World.  Institute of Archaeology, The Hebrew University (Mount Scopus), Jerusalem, Israel; February

HPLC Elution Methods Utilized at the Shenkar College in Israel.  Dyes in History and Archaeology, York, England; November

The Dyes on Ancient Textiles from the Middle East: Their Sources and Identification Methods.  The Textile in Eretz Israel Conference, Diaspora Museum, Tel-Aviv, Israel; November

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