Showing posts with label Research. Show all posts
Showing posts with label Research. Show all posts

Friday, February 12, 2016

Notes for a class



Below are some notes that I will use as a quick introduction to 2 hour hands on demo/workshop.


GLASS HISTORY
·        The first beads were made 80-100,000 years ago. They were made of simple natural materials, such as shells, seeds, or bone.
·        However, early humans did know what glass was, as it can be formed naturally when its basic raw materials are exposed to great heat, through volcanic activity or lighting strikes on beaches. Early humans used obsidian (volcanic glass) to make tools, weapons, and jewelry. Glassy slags are also formed in cremation fires, and in furnaces and kilns when metals or ceramics are being fired.
·        Man  made glass and glass beads developed around 3,000 BCE in Mesopotamia, later spreading to Egypt. The development of the bellows during that time perhaps enabled glass technology, which requires high heat.
·        Ancient glass has the same basic components as does one of the most popular types of glass used by bead makers today, silica, soda (a flux to lower the melting point of silica), and lime (calcium to harden the glass).
o   [silica melts at 3,092 F. [1,700 C.] adding flux allows glass to melt at a significantly lower temperature, about 2,372 F. [1,300 C.]
·        Glass made from these ingredients will naturally be slightly colored (often a light green) due to metal impurities in the sand 
·        Over time, people started to experiment with adding metals (such as Iron, Cobalt, Copper, Tin, and others) to glass to purposefully create color.

SOCIAL MEANING OF GLASS BEADS
Bead may seem like pretty, but inconsequential items. However, that could not be further from the truth. 
Throughout history beads have been traded far and wide, used as religious or spiritual talismans to protect the wearer, and served as symbolic indicators of social rank.  
Like all objects of adornment, beads have a significance that is unspoken, but very real, and which could be read by the people who wore them.

HOW GLASS BEADS ARE MADE
Glass beads can be made in many ways, but the method we will be demonstrating is called Winding. As you will see shortly, this method involves the use of a metal rod, called a mandrel today, around which the glass is "wound" 
What we are teaching you is called Flameworking, the use of a gas powered torch to melt the glass that is used to create beads. 
 It evolved from Lampworking, which began in Venice during the late middle ages (15th c). Lampworking uses a blowpipe to force air into the flame from an oil lamp to make beads. The blow pipe would increase the heat of the flame enough to melt the glass. 
In the early middle ages, glass beads were made either over an open hearth, or in a wood fueled furnace. 

SOCIETY PERIOD CULTURES WHO MADE BEADS
·        There are many cultures and time periods to choose from if you are interested in making historic beads.
·        A few cultures whose glass beads I have researched and made are: Phoenician, Roman, Anglo-Saxons, Early Irish, Merovingian, and Scandinavian. I have also done a bit of research on Islamic glass beads (a very generic term for beads made in the middle east from  600-1400 b.c.e).
·        I have a book which has pictures of beads from these different cultures.


Monday, September 7, 2015

Video from a real Anglo-Saxon Cemetary Excavation

I've started watching a few documentaries on the Anglo-Saxon to give me a bit more background knowledge of the period, as most of the bead work I have done has centered on that time/place. In my searches of You Tube I came across an British TV series called Time Team. Its kind of like a cross between a reality show & a documentary about archeological excavations. They had an episode about excavating an Anglo-Saxon cemetery in season 8 of their show.

Time Team Season 8 Episode 1: Anglo Saxon Cemetery

This was awesome to watch, because much of my research has focused on the reports generated form these excavations, so I got to see the reality of how these excavations are carried out. I think I will recommend this as a fun resource the next time I teach my class about making beads using archeological reports.

Sadly, I have not yet found a complete report written up about this excavation. This Link is the closest I have come. I was hoping i would find a more complete write up and analysis of this excavation, as they seem to have found a male grave with some monochrome and amber beads!


Note: A few days later I found several other episodes of this TV show where they excavate an Anglo-Saxon cemetary

Thursday, May 28, 2015

Notes about the aesthetics of Anglo-Saxon beads

The information below was collected as a result of feedback from this years K&Q's A&S competition. I'll continue to add information to this write up as I find it (I have a few more ILL books on the way), but I'm posting this now on my blog because I have some other research and documentation I need to work on at the moment. This was however, and interesting question to try to answer, and it took me in directions I did not expect to be going with my research, which was a good thing. I'll need to  figure out later how I can incorporate some of what I've written into my more formal A&S documentation. Please consider the following a rough draft, as some citation information still needs to be added or checked for accuracy.

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My recreation efforts have focused on the early Anglo-Saxon period, between the 5th-8th century (400-700).  The main reason for this early focus is that beads from this time period are the ones that are available to us to study. As Anglo-Saxon society converted to Christianity, people stopped being burred with grave goods, and it is from grave goods that most of our knowledge of glass beads arises. However, when I read about Anglo-Saxon art, glass beads are almost never discussed. When  historians look at early Anglo-Saxon (or Migration Period) art, it is the metalwork they give all their attention. Other studies dismiss early period art entirely, focusing on the art that was influenced by the conversion of the Anglo-Saxons to Christianity. According to one source "little of artistic interest survives from" the early Anglo-Saxon period,"and the art that is important and worth consideration are " stone buildings...crosses and the production of liturgical books, vessels, and vestments" (Oxford Art Online, "Anglo-Saxon Art). Where glass specifically is mentioned as an art form, the focus is on stained glass in churches during the later period. 

This leads to the question, why are beads not considered by art historians as being worth studying. Evidence from graves shows us that beads were significant and highly symbolic objects of adornment for women of all ranks. Perhaps the reason they are not given considerations by art historians is due to the simplistic (and sometimes rough) nature of their decoration. When compared to beads produced in the middle east during and after this time period, Anglo-Saxon beads are rather crude. Beads have also have a history of having been ignored by archeologists (Mannion; Brugmann) and only in the last several decades has a very serious study of them begun to take place.

Regardless of the reasons, glass beads can still be considered in light of broader aesthetic styles of the time period. However, because I have not found an academic who has made this connection for me, much of what I have to say here regarding glass beads will be my own thoughts in light of the academic research I have done.

To view pictures of Anglo-Saxon beads as you read, you can visit these two pages from my blog

Mucking Typology
Brugmann's Typology

To discuss early Anglo-Saxon artistic style it also helps to research the art of the Migration Period, the time from the 5th-8th century when the Germanic tribes overran and settled in areas once controlled by the declining Roman empire. Early Anglo-Saxon art is heavily influenced by the styles of the Germanic tribes who settled in England. While some Migration period art forms may have contained lingering Roman influences, several sources note that Anglo-Saxon art, including glass beads, do not seem to have been influenced much by the Romans at all (Guido 3-4, Owen-Crocker 7).

The Roman's preferred small shaped monochrome shaped beads in transparent blue and green (Brugmann 28-29). This style is nothing like the colorful and decorative Germanic style. According to one art historian, the "relationship between Saxons in England and the Saxons on the continent was never forgotten. There as a relationship of taste too...the tastes of Anglo-Saxon England were never markedly different from the tastes on the European Mainland" (Dodwell, 24). In fact, many Anglo-Saxon glass beads were imported form the continent or based off of continental designs (Brugmann).

Adornment was important to the semi-nomadic Germanic tribes, because these items were basically portable and very visible wealth (Dubin 73). As a result, much of the surviving artwork from the Migrationon period on the continent and in early Anglo-Saxon England consists of "decoration applied to portable equipment" that has been recovered as grave goods  (Oxford Art Online, "Migration Period"). One of the most "distinctive features" of Migration period art its range of color and surface patterning, seen mainly in jewelry" (Oxford Art Online, " Migration Period Art).  This stylistic preference was actual brought to Europe from more Eastern civilizations  (south Russian and Iranian traditions) by the Germanic tribes, which had been nomadic long before they overran the remains of the Roman Empire.

In general, early Migration period art consisted of "abstract geometric designs, together with simple human and animal figures of symbolic purpose" (Oxford Art Online, "Migration Period"). This style is perhaps best expressed in metalwork. Early Anglo-Saxon metalwork was"dominated by highly stylized animal and human figures from the Germanic Tradition" and sources note that the animals likely held symbolic or spiritual significance for the wearers (Oxford Art Online, "Anglo-Saxon Art)  As a result, one would think that these human and animal figures would also be found on beads, however, there is likely a practical reason that they are not. While it is relatively easy to add geometric designs to beads in the form of dots, lines, waves,  zig-zags  to make patterns on glass beads, my experiences attempting to make SCA order medallions has taught me that drawing  more complex designs on a glass bead is very difficult, even with my modern torch set up. Now, sculpting animals and figures can be done a bit more easily. The Phoenicians, for example, made glass beads in the shape of animal and human heads. However, this is not something that is found in Anglo-Saxon glass. I'm honestly not sure why. Overall, I have not found much that indicates that Anglo-Saxon glass designs were ritually or spiritually significant in any way. Many cultures, both earlier and later than the Anglo-Saxons created "evil eye beads" as protective amulets. However, no archeologists that I have read have identified an Anglo-Saxon bead with such a design. The closest I have come to a symbolic design on a bead is an Annular Twist pendant bead with a cross design on it, and it is the only cross design I have seen on an Anglo-Saxon glass bead.

While Anglo-Saxon glass beads did not incorporate Migration period stylistic preference for symbolic animal and human designs, glass beads can be seen to adhere to other aspects of Anglo-Saxon style. Anglo-Saxon artistic style was generally characterized by "bright and shining decoration" (Oxford Art Online, "Anglo-Saxon Art). Sculptures and walls were often painted bright colors (although little evidence of this remained today) and this preference for bright and contrasting colors and decoration is refereed to as polychromy by many books on Anglo-Saxon and Migration period art. In general surface decoration on objects was important to the Anglo-Saxons: "for them, it was the undecorated that was exceptional (Dodwell 38). The  "visual aesthetic of early Anglo-Saxon jewelry" was one of "dense ornament and busy surfaces which play on contrasts of glitter and plainness" (Webster, 8). While simple monochrome beads made up a large number of beads found at excavation sites (this is likely because they are much easier to produce), decorated Anglo-Saxon beads that are found have bright colors and surfaces filled with design; often several overlapping basic design elements are present (dots with waves, lines with waves, or two overlapping waves with dots, etc). Higher status graves also generally have more complexly decorated beads that lower status graves, showing that these decorated beads were highly valued (Hirst and Clark).

A wide variety of glass colors are evident in Anglo-Saxon glass; really all the basic colors of the rainbow are represented, along with white, brown and black. Archeologists have shown how metals were used to color glass since ancient time, and Anglo-Saxon bead artists also likely knew how to alter the colors of the glass that was imported to the island from other areas  by adding recycled glass of other colors to a crucible of glass before making their beads (Henderson). Nothing I have seen indicates that certain colors were harder to acquire than others. However, some colors were prefered for aesthetic reasons. The word polychromy also refers more specifically to a Migration period preference for red (glass or garnet) and gold ornamentation. Decoration with garnet and gold (the later of which became much more easily available for a time during this period) became very popular in the Merovingian kingdom and by extension in Anglo-Saxon society (Oxford Art Online, "Anglo Saxon Art). Merovingian bead design had a clear color preference for red and gold, and many beads  with these colors are found in Anglo-Saxon graves as imports. 

The Anglo-Saxons also were interested by "variable brightens;" they did not have our modern obsession with color itself (Dodwell, 33-4). The opposition of light and dark is actually a regular theme in Anglo-Saxon poetry (Webster 25). In the physical arts, this contrast is found in the gold and red polychrome style mentioned above  (Websiter 25). This preference for variable brightness and a general lack of concern about the colors themselves might explain the red, yellow, and green "traffic light beads," a bead design that was created by Anglo-Saxons (and not imported from the continent). To modern eyes, this color combination is somewhat garish, but the colors do contrast very well with each other on beads. This red, green and yellow color combination can also be found in some pages of the Lindsfarne gospels.

During 7-8th centuries bead in Anglo-Saxon England became less associated with the Germanic continent. The designs became more simple and more monochrome. With the spread of Christianity, glass stopped being burred in graves, and our knowledge of Anglo-Saxon glass beads decreases as a result.


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While it is possible to identify and trace the origin of cultures artistic style, Dr. Dorothy Hoogland Verkerk, a professor of Art History, notes that this distinction is a very modern one “There is a constant back and forth exchange of ornament, pattern and design in all medieval art. So it is less important to trace the origin of a design — who did it first — than it is to appreciate the borrowings and choices made by artists and patrons.” 


Source: http://etc.ancient.eu/2014/10/30/irelands-exquisite-insular-art/




 

Friday, October 24, 2014

Voyages of Discovery- Power Point



Link to power point presentation here


Feedback from the presentation included the idea that this may be something that would benefit from a longer class (not a half hour, but a full hour) with information added to help attendees figure out how to find such sources themselves (I had a slide on that topic, but ran short of time). It was also suggested that a resource lists might be a good thing to send people home with. Maybe I can make a list of Anglo-Saxon  reports, both ones that I have used, and perhaps others referenced in some of my texts.


Tuesday, September 2, 2014

ASO Article- The Social Meaning of Anglo-Saxon Glass Beads

I submitted an article to the East Kingdom A&S Newsletter.  The information in the article came from research included in the documentation for several of the A&S entries  have entered into competitions thus far. The idea to explore the social meaning of Anglo-Saxon glass beads came from a comment left at one of my A&S displays encouraging me to include a bit of this type of information in my documentation.

http://eastkingdomgazette.org/2014/09/01/newest-issue-of-ars-scientia-orientalis-available/

Sunday, August 10, 2014

Pennsic A&S

Artisans Row
There were two days of glass bead making at the Pennsic Artisan's Row this year. Below are pictures from the first day, where Bruni and I spent the whole day making beads, and where I got to share documentation with people!



Arts and Sciences Display



 



Bead Kiln
Using Bruni's extensive knowledge of pottery, and some research articles we found (particularly this one, and the citation mentioned in this online article), we made an experimental bead kiln. After talking with Bruni, I've included a few thoughts below, but hopefully we will get more written about this later!




From Bruni I learned about building with clay. We used coils, which was a common period method, and we scored the coils to get them to stick to each other better. The article listed above discussed another person's experimental bead kiln, where they used clay, straw, and sand. We included some straw and sand in our kiln, but not as much as the article suggested, so that is something to play with in the future. When making the hole in the side of the kiln to blow air into, we extended that small pipe into the center of the kiln. This was a suggestion made by a camp member, so that the kiln would heat evenly. During our previous try at kiln building, the side of the kiln with the air hole got hotter than the other side, and cracked.



We dried the kiln for several days before firing it. I learned that firing wet clay causes it to pop and shatter. Our bead kiln popped once or twice when we fired it (Pennsic was damp!), but it held up pretty well.  We added coal (with no lighter fluid). Once we got a fire going, we used an air mattress blower to increase the heat. This worked, and the kiln was able to soften the glass (which you see above).  It did not get as molten as when using a torch, but it was definitely soft, and that is enough. The air mattress blower worked to increase the heat of the kiln, but it was a definitely too strong (even holding it at a distance from the air hole). A bellows, or manual air pump would be better.



This is me trying to make a bead. Next time, adding more coal and letting the fire heat up for longer (as well as getting a more regular source of air flow into the kiln) might help get the glass a bit softer, making it easier to shape and work. I don't think the bead held onto enough heat to let me shape it much outside the kiln.


The finished bead. Coil marks are still visible, but they are also still visible on some extant beads I have seen. I had to use cutters to cut the piece if glass off the rod, as the kiln was not hot enough for me to flame cut the glass rod as I would do with a torch. If we can get the Kiln just a bit hotter, using a better air source and more coal, I think this will work well.

Friday, June 28, 2013

Glass Beads- Background Research/Documentation

The link below is to an ongoing "research paper" that represents what I have learned about glass beads and bead making in period. Some of the information in this paper has been included in documentation I have created for specific projects, but, this paper represents an Appendix that I can add to any project I create to provide the reader with a relevant historic overview. I hope to continue to add to it over time.

Link to Documentation