British Museum blog

Dotting the ’i’s…


Silke Ackermann, former British Museum curator

It’s been a while since the last post about this project, as much has happened since Josefina wrote about her research trip to Israel. Not least is the fact that I have left the British Museum for a professorship at the University of Applied Sciences at Schwerin (Germany). I will stay involved in the project in various ways, but the British Museum will not.

However, I wanted to write a final post to report on our study of two instruments. One was the famous medieval astrolabe with Hebrew markings in the British Museum, that has already played a role in the BBC Radio 4 series A History of the World in 100 Objects as object no. 62. The other is a later astrolabe in a private collection that had been deposited at the Museum by an owner keen to learn more about his object. This is a service that curatorial departments of the Museum regularly perform.

Josefina Rodríguez Arribas (left) and Silke Ackermann examining an astrolabe

Josefina Rodríguez Arribas (left) and Silke Ackermann examining an astrolabe

We were keen to get a better feel for the instruments; to examine the lettering, and explore the language used to see what it might tell us about the cultural circumstances in which they were made, and to take a close look at a much younger astrolabe, constructed at a time when the instrument had largely gone out of use.

An examination of the markings on both instruments made it quite clear that the language used is Judeo-Arabic in both cases, that is Arabic written in Hebrew letters. This is a phenomenon that can often be observed where Jewish people are living in an Arabic-speaking-community. They may well be speaking Arabic themselves, but will often use Hebrew letters for writing as this is the script they will have learnt. To indicate letters otherwise not used in Hebrew, certain letters will have special signs, normally dots.

Scientific analysis has shown the later piece to be made of rolled metal, a technique that was virtually unknown before the nineteenth century. This means it was made when the use of astrolabes had largely been superseded by other instruments.

When examining this instrument in detail we were struck by the fact that some of the numerals used to indicate values for – amongst other things – latitudes appeared to be full of mistakes. This, together with the late date of the instrument, might on first glance raise suspicion about its authenticity. However, the explanation appears to be a completely different one. One should note that these numerals are not written in ciphers, but in the so-called ‘alphanumerical system’, that is a system used in all Semitic languages (and also in Greek) where each letter of the alphabet also stands for a numerical value. Thus aleph stands for 1, bet for 2 etc. The numbers we had been looking at should have read ‘15’ – jod he in Hebrew. However, this letter combination looks identical to an abbreviation for the name of God – and would thus have been avoided by observant Jews. Other features of this particular instrument seem to indicate that it was carefully copied from an earlier source, probably by a scholar who was reading the medieval texts trying to understand or to teach how such an instrument might have worked.

I know I’m biased, but isn’t it truly amazing what we can learn just by looking at instruments?! Working in a museum one soon begins to realize that it is often objects that give us the cultural and social contexts that we cannot glean from written sources alone – and it is the combination of instruments and texts as the historical basis for our research that makes this project so exciting for me.

For more information about this project, visit the Warburg Institute website

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US artist John Sloan was born #onthisday in 1871. 
John Sloan, painter, printmaker and teacher, first took up etching as a self-taught adolescent.  Moving to New York in 1904, he became part of a group of eight artists, better known as “The Ashcan School”, who focused on creating images of urban realism. Between 1891 and 1940 Sloan produced some 300 etchings. He was also one of the first chroniclers of the American scene and wrote about printmaking and the etching technique.
This etching comes from the series of 10 prints entitled 'New York City Life', recording the lives of the ordinary inhabitants in less affluent areas of Manhattan. The prints had a mixed reception at the time and a number were rejected from an exhibition of the American Watercolor Society as ‘vulgar’ and ‘indecent’. #August is named after the Roman emperor Augustus. Before 8 BC the Romans called it Sextilis! 
This head once formed part of a statue of the emperor Augustus (ruled 27 BC – AD 14). In 31 BC he defeated Mark Antony and Cleopatra at the battle of Actium and took possession of Egypt, which became a Roman province. The writer Strabo tells us that statues of Augustus were erected in Egyptian towns near the first cataract of the Nile at Aswan and that an invading Kushite army looted many of them in 25 BC.
Although Roman counter-attackers reclaimed many of the statues, they did not reach Meroë, where this head was buried beneath the steps of a native temple dedicated to Victory. It seems likely that the head, having been cut from its statue, was placed there deliberately so as to be permanently below the feet of its Meroitic captors.
The head of Augustus appears larger than life, with perfect proportions based upon Classical Greek notions of ideal human form. His calm distant gaze, emphasised with inset eyes of glass and stone, give him an air of quiet, assured strength. Coins and statues were the main media for propagating the image of the Roman emperor. This statue, like many others throughout the Empire, was made as a continuous reminder of the all-embracing power of Rome and its emperor. English sculptor Henry Moore was born #onthisday in 1898.
Drawing played a major role in Henry Moore's work throughout his career. He used it to generate and develop ideas for sculpture, and to create independent works in their own right.
During the 1930s the range and variety of his drawing expanded considerably, starting with the 'Transformation Drawings' in which he explored the metamorphosis of natural, organic shapes into human forms. At the end of the decade he began to focus on the relationship between internal and external forms, his first sculpture of this nature being 'Helmet' (Tate Collections) of 1939.
This drawing titled ‘Two Women: Drawing for sculpture combining wood and metal’ was based on a pencil study entitled ‘Ideas for Lead Sculpture’. It reflects his awareness of surrealism and psychoanalytical theory as well his abiding interest in ethnographic material and non-European sculpture; the particular reference in this context is to a malangan figure (malangan is a funeral ritual cycle) from New Ireland province in Papua New Guinea, which had attracted his interest in the British Museum. 
Henry Moore, Two Women: Drawing for sculpture combining wood and metal. England, 1939. Here's another fabulous view of the Great Court captured by @whatinasees at our instagramer event #regram #repost
Check out all of the photos at #emptyBM Vincent van Gogh died #onthisday in 1890. Here's a print of his only known etching. It depicts his doctor, Dr Paul Gachet, seated in the garden of his house.
#vanGogh #etching Beatrix Potter was born #onthisday in 1866. Here are some of her flopsy bunnies! 🐰
#BeatrixPotter
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