British Museum blog

Looking for a time machine: astrolabes in medieval Jewish society


Josefina Rodríguez Arribas, researcher

Astrolabes are the medieval equivalent of the kind of handheld technology we’re all very accustomed to in the twenty-first century. They were instruments you could use to find your way, tell the time, track the movements of the sun and stars, and were – still are – complex, and incredibly impressive.

As the researcher working on a project with the British Museum and the Warburg Institute to study these fascinating objects, my recent trip to Israel was not the first time I’ve been there in search of medieval astronomy and astrology. However it was the first time I have returned with a database of about 140 Hebrew manuscripts dealing with astrolabes: a treasure trove of texts describing and explaining how to build or use these instruments in their almost two thousand years of history. In other words, texts written mostly in Hebrew and a few in Judaeo-Arabic (Arabic with Hebrew script) between the twelfth and the eighteenth centuries by Jews from around the world (astrolabes remained in use until the nineteenth century in Islamic countries).

These manuscripts are not all physically in Israel – most of them are in libraries and private collections around the world, as are the few surviving Jewish instruments. However, the Jewish National Library in Jerusalem hosts the Institute of Microfilmed Hebrew Manuscripts, in which we can look for and read microfilms of practically all the Hebrew manuscripts in the public and private collections of the world.

Comparing manuscripts

Comparing manuscripts

An amazing resource, and very convenient. I can sit in the manuscripts reading room, in the basement of the National Library in Jerusalem, and let my eyes go from a Sephardic script of the thirteenth century to an Askenazi of the fifteenth or a Byzantine of the sixteenth century, all of them explaining how an astrolabe works.

These texts were written and copied by Jews spread over three continents, in countries and cities so close or so distant as Vienna, Istanbul, Egypt, Yemen, Lisbon, Baghdad, Mantua, Benevento, Syracuse, Senegal, and more. Most of them were also copied many times throughout the centuries, some in years as decisive for the history of the world or the history of the Jews as the year 1453 (the fall of Constantinople into Turkish hands) or the year 1492 (edict of expulsion of Jews from Spain), when many codices and manuscripts were destroyed or lost for many reasons.

These handwritten texts are like a time machine encapsulating in their parchment, paper, ink, writing, binding, and list of owners, information about the authors and the readers, the Jewish communities where they were produced and the patrons who paid for them. So the transcription, translation, and study of these texts is going to provide us with decisive information about the degree of scientific knowledge and familiarity with certain scientific instruments of many Jewish communities from the twelfth to the sixteenth centuries, and even later.

If you would like to leave a comment click on the title

Filed under: Research, , , ,

Receive notifications of new posts by email.

Join 14,348 other followers

Categories

Follow @britishmuseum on Twitter

British Museum on Instagram

As part of our #MuseumInstaSwap with @ImperialWarMuseums, we’ve been given special access to the Churchill War Rooms – located deep below the streets of Westminster.
This is Prime Minister Winston Churchill’s bedroom, which includes his private desk, briefcase and papers, his bed and chamber pot and even an original cigar! The bedroom is located close to the Map Room, keeping Churchill as close as possible to the epicentre of Cabinet War Rooms.
Following the surrender of the Japanese Forces the doors to the War Rooms were locked on 16 August 1945 and the complex was left undisturbed until Parliament ensured its preservation as a historic site in 1948. Knowledge of the site and access to it remained highly restricted until the late 1970s when @ImperialWarMuseums began the task of preserving the site and its contents, making them accessible to as wide an audience as possible and opening them to the public in 1984.
Discover more stories from London’s museums with #MuseumInstaSwap We’re exploring the Churchill War Rooms – the secret underground headquarters of the British government during the Second World War – in partnership with @ImperialWarMuseums for #MuseumInstaSwap.
The fear that London would be the target of aerial bombardment had troubled the government since the First World War and in 1938 the basement of a Whitehall building was chosen as the site for the Cabinet War Rooms. From 1940 to 1945 hundreds of men and women would spend thousands of vital hours here and it soon became the inner sanctum of British government.
Here you can see the wall of the Map Room, detailing the positions of British convoys across the world, which has not changed since 1945! Today in #MuseumInstaSwap we’re beneath the streets of Westminster to discover the hidden secrets of the #WW2 Cabinet War Rooms, which is part of @ImperialWarMuseums.
This is the underground bunker that protected the heart of Britain’s government during the Second World War as Prime Minister Winston Churchill and his inner circle plotted the route to Allied victory. It’s an amazing experience to step back in time and walk in the footsteps of Churchill, glimpsing what life would have been like during the tense days and nights of the Second World War. This archive photo shows Churchill at his desk in the Map Room at the Cabinet War Rooms. Beside him, Captain Pym of the Royal Naval Volunteer Reserve (RNVR) takes a telephone call. To this day, the Map Room has remained exactly as it was left on the day the lights were switched off in 1945.
© IWM (HU 44788) The collections of the @ImperialWarMuseums present stories of wartime life from many perspectives. During the First World War, hunger seriously affected the civilian populations of all the combatant nations.
Germany introduced numerous government controls on food production and sale, and these rationing cards show how the distribution of essentials such as meat, bread and milk was restricted. But the British naval blockade caused real suffering, even starvation. Serious shortages of food and resources led to price rises, riots and strikes.
Discover more stories from London’s museums with #MuseumInstaSwap In the First World War Galleries of @ImperialWarMuseums there are many stories of what life was like for ordinary civilians. These ration books show how staple foodstuffs like meat, butter and sugar were carefully distributed in the UK, where hunger caused by naval blockages was a serious threat on the home front.
The government introduced rationing in London early in 1918 and extended it nationwide by the summer. People now got fair shares of food and although supplies were limited, nobody starved. British civilians defied German expectations by accepting this state intrusion into their daily lives.
Discover more stories from London’s museums with #MuseumInstaSwap MuseumInstaSwap Today for #MuseumInstaSwap we’re exploring the fascinating First World War Galleries at @ImperialWarMuseums, to learn more about the impact of the war on ordinary people.
Hunger seriously affected the civilian populations of all the combatant nations. Agriculture and food distribution suffered as a result of the war, and naval blockades reduced food imports, which forced up prices and encouraged hoarding. Governments responded by putting price controls on staple foodstuffs.
Women and children queuing for food became a common sight in cities across Europe. This photograph from the archives of @ImperialWarMuseums shows food queues in Reading, England. The need to queue was lessened when rationing was introduced during 1918.
© IWM (Q 56276)
Follow

Get every new post delivered to your Inbox.

Join 14,348 other followers

%d bloggers like this: