The Banu Qurayza

Once the Confederacy gave up the Battle of the Trench because of discord and mistrust in the alliance, Muhammad turned his attention to the betrayal of the Banu Qurayza.

The Banu Qurayza were a Jewish tribe that settled in an oasis south of Medina. They had offered tools to help Muhammad dig the trench, but wanted no part of the conflict between Muslims and the Quraysh of Mecca. Still, attempts to enlist their support by the Confederacy reached Muhammad's ears, and he felt he could no longer trust them.

They were a potentially powerful enemy, possessing weapons and warriors, and having them so close to him was considered no longer tenable. Muhammad claimed a vision of the angel Gabriel told him they needed to be destroyed. He surrounded them and began a siege. (The illustration is of the siege from a 19th century telling.)

Negotiations began. The Qurayza offered to depart their land, requesting one camel-load of possessions per person. This was rejected, so they offered to depart leaving everything behind. This, too, was unacceptable to Muhammad. Some Muslims—hoping for leniency for the Jews—asked Muhammad for the opportunity to name a judge to handle the situation and decide what was best. Muhammad appointed a loyal Muslim who had been wounded in the Battle and was dying. Sa'd ibn Muadh pronounced that all the Qurayza men should be executed, their possessions distributed among Muslims, and all the women and children given to Muslims as slaves.

Muhammad agreed to this, declaring it to be what God wanted. The Qurayza males who had reached puberty (estimated between 600 and 900) were beheaded. The rest of the population became slaves, some being sent to central Saudi Arabia. (Some of the slaves were bought by Jews and freed.) Some contemporary records state that some men were spared when vouched for by Muslims. Muhammad also chose one of the women, Rayhana, as a companion. (There are conflicting stories about whether she agreed to become his wife or remain a slave and concubine.) Muhammad also personally took 20% of the loot.

Some scholars stress that the Banu Qurayza were not killed for being Jewish, but were an example of collective punishment for treachery. For centuries afterward Muslims and Jews lived on amicable—thought not politically equal—terms. In fact, a multi-religion state was described in the Constitution of Medina, created during Muhammad's time there. Let's take a closer look at religious tolerance in Medina tomorrow.

The Conquest of Mecca—During the Trench, Part 2

During the Battle of the Trench between the Quraysh of Mecca with their Confederacy and Muhammad and the Muslims who had headquartered in Medina, Muhammad was looking for ways to dissolve the enemy's alliance. Fortunately for him, a high-ranking member from Mecca who had converted to Islam approached him, and was given the task of finding ways to sow discord among the Confederacy.

His name was Nuaym ibn Masud of the powerful Ghatafan tribe that had joined the Confederacy because they had been offered a large bribe of half the harvest of the Banu Nadir, a tribe of Jews that had been expelled from Medina by Muhammad. Muhammad had directly tried to barter a third of the date harvest of Medina to get the Ghatafan to leave the Confederacy, but that plan failed.

Masud (pictured above from this article) went to the Qurayza, a Jewish tribe south of Medina who had remained neutral. The Confederacy had approached them and pointed out the overwhelming numbers of the Confederacy and that the Muslims would surely lose. Masud told the Qurayza (speaking as a member of the Confederacy) that if the siege failed the Confederacy would abandon the Qurayza, leaving them at Muhammad's mercy. He suggested that the Qurayza guarantee the Confederacy's support by demanding hostages from them.

Masud then went back to the Confederacy and told its leader, Abu Sufyan, that the Qurayza had defected to Muhammad and should not be trusted if they ask for hostages as a guarantee; that the hostages were really prisoners to turn over to Muhammad as a sign of faith, to become slaves.

The Confederacy then sent a messenger to the Qurayza to discuss a united assault on Medina. The Qurayza took the opportunity to demand hostages as insurance of cooperation and support. This of course fed into the Confederacy's Masud-stoked fears that hostages would be turned over to Muhammad. Abu Sufyan took this news to the leader of the Banu Nadir, who was absolutely shocked that a tribe of Jews would be allied with Muhammad, who had treated the Jews so poorly in Medina. Fears of treachery and distrust between these and the various tribes of the Confederacy made success seem less and less likely.

Also, the Confederacy suffered from the situation on the ground. They were used to battle, not a long siege. The Trench prevented them from attacking and resolving things quickly, and they were getting hungry and thirsty. The weather was also cold and wet (this was October).

By the end of 20 days, the confederacy gave up and went their separate ways. That is when Muhammad turned his attention to the Banu Qurayza, who had at one point aided him and at another chose to support the Confederacy. He decided they had to be dealt with severely, but that's a story for tomorrow.

The Conquest of Mecca—During the Trench, Part 1

While the Battle of the Trench was happening, the outnumbered Muhammad in Medina looked to break up the attacking Confederacy by sending messengers to negotiate with some of the different groups that were allied with the Quraysh of Mecca.

One group he approached was the Ghatafan, a Bedouin tribe that had been enlisted by an offer of half the harvest of the Jewish Banu Nadir, who had been expelled from Medina by Muhammad and were interested in revenge. While the siege of the Battle of the Trench was happening, Muhammad sent word to the Ghatafan that he would give them one-third of Medina's date harvest if they withdrew. Originally they counter-offered by demanding half the harvest, but then agreed to negotiate over the third. Muhammad took this plan to the city leaders of Medina, who were shocked at the idea of giving up a third of the date harvest as a bribe for safety. Although the negotiations went nowhere, the news that the Ghatafan had entertained the idea got out and weakened the resolve of the Confederacy.

A group that was not a part of the Confederacy also played a part. The Banu Qurayza were a Jewish tribe centered in an oasis south of Medina that wanted no part of the battle, but did lend tools to Muhammad to help dig the trench to protect from the approaching Quraysh. Despite this defensive help, the Qurayza did not contribute any men to the defense of Medina, wishing to remain neutral.

The Confederacy thought they might use the Banu Qurayza against Muhammad and the Muslims. A member of the Jewish Banu Nadir was sent to the Qurayza to discuss an alliance. The emissary tried to persuade the Qurayza that Mecca's army would overcome the Muslims, so it was safe to join the Confederacy. The Qurayza agreed to work with the Confederacy. Muhammad sent men to find out if the rumors were true, and to remind the Qurayza of the fate of the Nadir.

Rumors that the Qurayza were now opposed to Medina and could attack the city from the south spread among the Muslims. The Qurayza were a wealthy tribe that had weapons and soldiers. The trench had prevented the Confederacy from marching into Medina, but the siege (although only 20 days long) also blocked any trade. Food was growing scarce, and for the first time since Muhammad had founded Islam, daily public prayers were not being called regularly.

Then Muhammad had a gift handed to him. A high-ranking member of the Confederacy, a Ghatafan named Nuaym ibn Masud who had secretly converted to Islam, came to him to offer help. Muhammad asked him to sow discord among the Confederacy so that it would fall apart. Masud knew just what to do, as I'll tell you next time.

The Conquest of Mecca—The Battle of The Trench

After the Battle of Badr and the Battle of Uhud, the next encounter between the Quraysh of Mecca and the Muslims who followed Muhammad was the Battle of the Trench. This was in January of 627.

Muhammad's Muslims continued to raid and plunder Quraysh caravans, especially at Badr, and so it was decided by the Quraysh to advance on Medina and occupy it. The Quraysh needed military reinforcements, and so negotiated with the Bedouins to join them. A tribe of Jewish Arabs, the Banu Nadir, who had been expelled from Medina by Muhammad, offered to the Bedouins half of their crops if the Bedouins would participate. Other tribes also joined the effort: the Ghatafan, Ased, Salem, Murra, Fuzarah, and Shuja. This alliance was called the Confederacy.

A group of 7000-10,000 men were assembled to march on Medina, led by Abu Sufyan. Muhammad learned of their plans, and at the suggestion of Salman the Persian, Muhammad ordered a deep trench to be dug. Some of the tools used were loaned from the Banu Qurayza, another Jewish tribe. The Banu Qurayza, occupying an oasis near Medina, unlike the Nadir, tried to remain neutral. The material from the trench was thrown up on the Medina side, creating a high embankment from which the Muslims could shoot arrows or throw stones down on anyone trying to cross the trench.

The illustration shows the three contingents of Quraysh and their allies (the red arrows) approaching the trench. Uncertain of how to proceed across the barrier meant the "battle" became more of a siege, an unfamiliar tactic in Arabian warfare. Attempts to fight over a span of 20 days led to a half-dozen casualties among the Muslims and three of the Quraysh. The Quraysh gave up and went home.

That is too simplified, however. Muhammad tried to break up the Confederacy by negotiating with some of the different tribes, even offering bribes. I'll go into detail tomorrow about the Ghatafan, and what happened to the Banu Qurayza when they changed their stance.

The Conquest of Mecca—The Battle of Uhud

After the Battle of Badr and the deaths of some of the Quraysh leaders, the leader of the large caravan involved, Abu Sufyan, became leader of the Quraysh. He determined to avenge the deaths at Badr, and therefore led an army of about 3000 (three times the size of the Meccan force at Badr) to attack Muhammad and his Muslim followers at Medina.

When word of the gathering army reached Medina, Muhammad and his senior leaders were confident in the fortifications of the city. His younger and more energetic members, however, wanted to march and fight the approaching Quraysh in the open. The glory of open battle won the debate.

The Muslim army from Medina numbered only 1000 when they went to Mount Uhud north of Medina (pictured), and was reduced further when 300 men returned to Medina, uncertain about the decision to fight in the open. Muhammad sent 50 archers to the slopes of Uhud to protect the flank of the majority, who were positioned in a valley. The battle took place on 19 March 625.

The initial success of the Muslims prompted the archers to leave their position to take part more directly against the Quraysh. This was against the orders of Muhammad, who had told them to stay on the slope (now called the Mount of the Archers). The Quraysh realized that they were no longer as vulnerable to arrows from above, and were able to send a group to outflank the archers.

Several Muslims were killed at the Battle of Uhud, and Muhammad was injured. The Muslims retreated up the slopes, and the Quraysh took this as a victory and returned to Mecca.

Six months later, the Quraysh decided again to take the offensive and occupy Medina, initiating The Battle of the Trench, a battle that turned out to not be a battle. I'll explain next time.

The Conquest of Mecca—The Battle of Badr

Mecca was occupied largely by the Arab Quraysh tribe—a grouping of many clans. Muhammad was born into one of these clans, the Hashim. Muhammad's spread of Islam in Mecca did not stir up any trouble among the Quraysh until he started attacking their polytheistic beliefs.

Relations with Muhammad's group deteriorated, and so Muhammad took his followers to Medina, an event called the Hijra ("a severing of ties of kinship or association"), Latinized to Hegira. In the Julian calendar, this event took place on 16 July 622.

While in Medina, Muhammad began raids on Quraysh trade caravans in order to enrich his people. News of a particularly large caravan from Gaza to Mecca—supposedly 1000 camels carrying 50,000 dinars' worth of goods—prompted him to send his men to attack it at the town of Badr. The leader of the caravan, Abu Sufyan, heard rumors of the intended attack, so he sent messengers to Mecca for help. Mecca sent 1000 Quraysh. Their leader sent scouts ahead to reconnoiter. He diverted the caravan to a more difficult route that would take them out of danger.

Word was sent back to the approaching Quraysh force, at which several hundred decided to go home. One group that left was related to Muhammad's mother. Muhammad learned of the nearby presence of the Quraysh and ordered his people to fill all the available water wells with sand except one that the Muslims controlled. A clash between the Quraysh and Muslims followed. The Quraysh assumed that the Muslims would simply be scared off by a show of force, but the Muslims were well-watered and filled with visions of heavenly reward for fighting, while the Meccans were dealing with thirst and aware that they could be fighting against their own kin and former friends. Also, the Meccans' intent was to capture the enemy for punishment; the Muslims were ready to kill.

The Battle of Badr started with individual combat between three warriors of each side, but quickly devolved into a melee. It did not last much past noon. The Muslims gained loot as well as camels, weapons, armor, and captives for ransom. The illustration is of the aftermath of the Battle of Badr and the casting of the defeated Quraysh bodies into a dry well, from a 14th century retelling.

This was motivation for the Quraysh to send an attack against the Muslims. How that went will be tomorrow's topic.

Halima Sadiyah

Her full name was Halima bint Abi Dhu'ayb, and she was born in the late 6th century, a member of the Banu Sa'd. The Banu Sa'd was a royal Arabian tribe of nomads. The tribe's travels took them regularly to Mecca, where mothers would offer their newborns to women of the Banu Sa'd to take away and wet nurse them. This was done to ensure the children would be exposed to only Arabic and avoid some of the diseases that could travel through a city.

One season, as the Banu Sa'd reached Mecca, one women with an eight-day-old baby was having difficulty finding a wet nurse. This was Aminah bint Wahb, whose husband Abdullah had died young, leaving Aminah pregnant. The Banu Sa'd women were reluctant to take on a charge when the father's death meant they might not get paid.

Halima felt sorry for the mother, and also did not want to be the only woman who did not have a child to nurse, so she took on the child Muhammad. (She did have a child of her own, but wet nursing was an occupation that brought in money.) Muhammad was with her and the Banu Sa'd tribe until the age of five, when she returned Muhammad to his mother and grandfather.

Later in life, Halima went to the now grown and married Muhammad to complain about the hardships she was going through. Muhammad mentioned her concerns to his wife, Khadija, who gave Halima some sheep and camels.

Halima and her husband converted to the new religion promoted by her fostered child in the aftermath of the conquest of Mecca. The takeover of Mecca by Muhammad and Muhammad's followers will be the next topic.

Milk Kinship

The Koran is the only text of the Abrahamic religions (Islam, Christianity, Judaism) that mentions anything related to mothers and the feeding of children. It is not explicit, but mentions the relationship with:

We have enjoined man to be kind to his parents. His mother has carried him in travail, and bore him in travail, and his gestation and weaning take thirty months. [46: 15]

The mother's role clearly extended past birth to breastfeeding until the child was on to solid foods. Muslim philosophers went further: "No milk is more blessed than mother's milk for the infant." and "There is no better milk for an infant than mother's milk." are some of the statements found that expanded on the Koran's verse.

There is also:

And if you wish to have your children nursed by a substitute, there is no blame upon you as long as you give payment according to what is acceptable. [2:233]

Because of the practice of employing a wet nurse—a woman other than the baby's biological mother to breastfeed the baby—another discussion arose: if kinship is established by the action of breastfeeding, what does that mean for the future of the child?

In Western Europe, "milk siblings"—children linked by different mothers but by the same wet nurse—could be raised together, the wet nurse's child receiving some of the same benefits as the employer's child. Alexander Neckham, born on the same day as the future King Richard I of England, was raised alongside him in his early years, since Neckham's mother, Hodierna, was employed to live in the palace and nurse both babies. (It was believed that only a woman who had just given birth could lactate, so to find a wet nurse you would seek a woman who had just had her own child.)

In Islamic law, however, "milk kinship" (rida'a) presented an issue that was apparently not a concern in Europe. Because of the bond created between mother and child, children nursed by the same woman experience "milk kinship" which is a bond strong enough that marriage between them would be considered incestuous. Families must be known to each other to prevent inappropriate marriages.

This is an issue in modern times, because:

Prohibited to you [for marriage] are…your milk mothers who nursed you and your sisters through nursing…[Nisa 4:23]

There are HMBs (Human Milk Banks) for infants in hospitals. These are usually from donor mothers, and the milk is mixed. There is no way to know whence comes the milk fed to a baby that needs it. Therefore, when the baby is old enough to consider marriage, it is impossible to know whether he/she has any "milk kinship" with a potential mate.

Of course, the Koran comes from the sayings and experiences of Muhammad. What we have been talking about is no different. Muhammad had a wet nurse, and tomorrow we'll see a brief biography of Halima bint Abi Dhu'ayb.

Slavery and Wet Nursing

Yesterday I talked about philosopher Ramon Lull and his thoughts on the role of human milk in the proper raising of children. He was born in 1232 in Majorca City (now called Palma), which had been recaptured from Muslims in 1229. In his lifetime, Majorca City had a population of up to 30% Muslim slaves from the Christian reconquista.

There is plenty of evidence that women slaves were preferred to men because of their role in household tasks, and especially as wet nurses. Especially in the Iberian Peninsula as opposed to elsewhere in the Mediterranean, wet nurses were often slaves.

Because of Ramon Llull's ideas—and of course the tendency of human populations to despise those who are different—these Muslim slaves were often forced to become baptizata, "the baptized" (converts from Islam), so that they would be proper wet nurses and caregivers for the children.

This relationship could be beneficial to the wet nurse, besides the opportunity to be treated well while they had primary "control" over the newborn. In 1266, a Barcelonan patrician named Romeu Durfort left his baptizata wet nurse a legacy of 40 sous and charged his heir with maintaining her for life. In 1280, a burgess freed her baptizata, Esclarmonda, and all Esclarmonda's children in gratitude for Esclarmonda's wet nursing.

This is not to say that life was wonderful for the Muslim-born mother:

In this society elite Christian mothers were to bear legitimate children and enslaved Muslim women who bore children were urged to convert, watch their masters send their infants to be nursed by someone else, and then serve as wet nurses to the heirs of their masters and mistresses. [link, p.169]

Llull's work on raising children also shows a distrust of "immoral servant women" and warns that mothers should not leave their daughters at home with the servants when the mothers go out. Llull assumes hostility between the wife and her household servants.

For the Muslim-born population, whether they were servants are free, breastfeeding the child of another created a situation referred to as "milk siblings" or "milk kinship." We will take a closer look at the Koran's views on wet nursing tomorrow.

Raising Moral Children

Ramon Llull was a 13th century Catalan mystic and theologian whose controversial writings made him many enemies. One of his more interesting metaphors that perhaps was not so controversial was about raising moral children.

His Doctrina pueril ("Instruction for children") was a guide to moral living addressed to his son Domènec (then between eight and 12 years old). It was important for him to write it out not only as an idea to leave to posterity, but also because he had left his wife and family several years earlier (to become a Franciscan) and therefore was not raising Domènec personally.

Among his pieces of advice for raising children properly, he includes 

...not to expose their children to romances, songs or musical instruments that encourage them to be lustful. To preserve their children’s budding intellects and overall bodily health fathers should ensure that spicy food never be served, as it could overheat their humours and damage their developing brains, and nor should rich food, which would lead them into ill health, gluttony and lust later in life. [link]

Llull does not discuss breastfeeding or wet nurses, but he does emphasize the "health benefits and moral properties" of human milk in the raising of children. Solid food should not be introduced to the child's diet too early, lest the child become "mean and stingy." Llull associates the feeding of children with breast milk with charity, generosity, good upbringing, and the development of moral character. His idea that breast milk contributed to the development of morality was picked up by later philosophers, especially in the Iberian peninsula. The illustration comes from a later published copy of Llull's Doctrina and represents the tree of morality, the choices one makes as one grows that could lead to either joy or punishment.

This was not a strictly religious view in that there is no reference in the Bible to breastfeeding, nor in early Jewish writings. In fact, only the Koran among the Abrahamic religions mentioned the topic. Verse 46:15 mentions a bond between the baby and the source of breast milk that last until the child is about two years old. This was an interesting wrinkle on the subject of wet nurses, since in parts of the Iberian Peninsula, wet nurses were commonly Muslim slaves. Tomorrow, let's talk about wet nursing, slavery, and a little about "milk siblings."

Care and Feeding of Princes

Since "infant formula" was not invented until the 20th century, breastfeeding was the standard way to get nourishment into a baby. If for some reason a mother could not breastfeed (death in childbirth, illness, disinterest), a wet nurse was found: a lactating woman willing to breastfeed the newborn. There might be another reason a mother could not nurse, especially if she were a high-ranking royal: the desire not to infect the breastmilk.

If you look at family trees of kings and queens, you will see many, many members in each generation. This did not necessarily spring from a deep and abiding sexual attraction between husband and wife. The greatest need of a king/queen was to produce an heir.

The need was for several heirs, in fact. Not only was there a concern about infant mortality, or a grown son dying in battle or by accident before he had a chance to inherit the throne. There was also a political desire to marry children to nobles of your own or other countries in order to create allies through family ties.

How did this need preclude breastfeeding? According to an article from the National Library of Medicine:

There was even a belief that the milk would be contaminated by sexual intercourse, which contraindicated marital relations during the period of lactation, a situation that the queens could not afford. [link]

Since a queen was "ideally" made pregnant as soon as she was able after the birth of a child, her milk was not suitable for the newborn, and so a wet nurse was employed for that vital purpose. Choosing a wet nurse was the province of the queen herself. The wet nurse was not likely to be a woman off the street, but a member of a royal family who was lactating. The wages for a royal wet nurse were very high compared to other professions available to females in the Middle Ages.

There's a lot more medieval discussion about breast milk than one might think. The philosopher and theologian Ramon Llull had advice for raising children that focused on human milk. I'll share that next time.

The Career of the Wet Nurse

A "wet nurse" is a woman hired to breastfeed a baby when the baby's own mother is unable or unwilling to do so. The mother may have died in childbirth, or the mother may be a wealthy woman who does not want to be bothered with the act of breastfeeding. Disease could also prevent a mother from lactating sufficiently.

The illustration is from the 15th century Danse macabre des femmes ("Dance of death for women"). This shows death threatening a wet nurse that the baby she holds will die. She replies that she would like to go dancing but cannot because of the swelling she feels that must be dealt with by feeding the child and that "sudden death would be a pity."

Christianity, Judaism, and Islam all agreed that breastfeeding was important and demanding work. If a Jewish mother did not want to breastfeed, it was her husband's obligation to find an appropriate substitute. Medieval Islamic law considered nursing and raising the youngest children as a job worthy of a salary if a mother had to do the work after the death of the child's father. Contracts for wet nurses could last from one to nine months.

The practice began long before the Middle Ages. In Rome a wet nurse was a nutrix, "nurturer," and wet nurse was a profession. Rome had a landmark called the Columna Lactaria ("Milk Column") where (the Roman grammarian Festus wrote) people could bring babies to be nursed. It was either a place where wet nurses could be hired, or a public charity where lactating women shared their milk, or perhaps both.

Breast milk was understood to be vital to the proper development and health of a baby, and so medieval parents would choose their wet nurse carefully, researching the health and moral standing of the candidate.  The wet nurse could be the major influence on the child for its first couple years at least—and might be employed as a nanny later, as with the mother of Alexander Neckham, Hodierna, who was wet nurse to Richard I.

After the Black Death of the mid-14th century, as prices for goods and services rose because of the scarcity of laborers, wet nurses were increasingly slaves put into the role whether they wished it or not.

The breast feeding of royal children, however, was a different case. Let's talk about the care and feeding of princes tomorrow.

Alexander Neckham and Virgil's Pet Fly

Alexander Neckham (1157 - 1217) was an abbot in Cirencester Abbey who left us several writings, including De naturis rerum ("On the nature of things") with the first reference in the West to the magnetic compass.

He wrote many other works, mostly theological. His Speculum speculationum ("Mirror of speculations") while not being very original, pulled together a range of topics borrowing from Peter Lombard's Sentences, Augustine, Platonic ideas from William of Conches, Avicenna, Aristotle and others. One of his chief aims in the Speculum was to combat heresy, specifically Catharism's dualism (that good and evil were equal powers). He wrote Fables taken from Æsop and Avianus, and a commentary on Virgil that might have started a legend.

In his commentary, he writes about a poem attributed to Virgil, Culex ("The Gnat"). There is a medieval legend that Virgil (70 - 19BCE; often spelled Vergil in the Middle Ages) had magical powers. What Neckham wrote was Vergilius fecit Culicem ("Virgil made a gnat"). What Neckham is likely to have meant was that Virgil wrote the poem "Gnat," but it was misunderstood to mean that Virgil made a gnat (or fly), and this was taken to mean Virgil had magical powers and could create things.

Shortly after Virgil's death, his home town of Naples started the story that he had founded the city, and/or that he was its governor. Naples also had a story that workmen constructing a temple were plagued by swarms of flies. Virgil's gnat/fly destroyed all the other flies, allowing the men to finish their work in peace.

Virgil's fly gave rise to another legend in the Middle Ages, that he mourned its death and built a lavish tomb for it. The illustration is from Ripley’s Wonder Book of Strange Facts (1957). The Latin inscription reads “Fly, may this urn prove light for you, and may your bones rest easily.” Historians have tried to explain this persistent Virgilian legend as a legal dodge. The government was confiscating estates of the wealthy to be able to give land to returning war heroes (true). The estate could be saved if it held a burial plot (true). Virgil's family had a large estate (true). No contemporary writer, however, mentions any such event in Virgil's life.

A lot of of stories can be spun from the desire to believe amazing things, along with a misunderstood line.

I'd like to return to a mention from yesterday: Neckham's mother was wet nurse to the future King Richard I. What was the life/career of a wet nurse like? We'll look into that tomorrow, and ask the question: is there an appropriate illustration for this topic in a G-rated blog in the United States?

The Magnetic Compass

Alexander Neckham was a theologian and writer from St. Albans whose birthday gave him a surprising status. He was born on 8 September 1157, reportedly the same day as King Henry II's son Richard. This made Alexander's mother, Hodierna, an ideal wet nurse for the baby prince. Richard and Alexander would both be nursed by Hodierna. Hodierna was housed (and Alexander therefore raised) in the king's household and treated well.* Hodierna would even become Richard's nanny and his main source of maternal affection.

Alexander received an education similar to the young Richard, and went on to become abbot of Cirencester Abbey. He also wrote books on theology and other subjects. One of these books was his De naturis rerum ("On the nature of things"). Here's a passage:

The sailors, moreover, as they sail over the sea, when in cloudy weather they can no longer profit by the light of the sun, or when the world is wrapped up in the darkness of the shades of night, and they are ignorant to what point of the compass their ship's course is directed, they touch the magnet with a needle, which (the needle) is whirled round in a circle until, when its motion ceases, its point looks direct to the north. (1863 translation)

This is the earliest (written between 1187 and 1202) reference in Europe to the use of the magnetic compass. Beckham had recently returned from France and was specifically referring to seeing the use of the compass in the English Channel.

The Chinese were using the magnetic compass over a hundred years prior to this. It is tempting to make the leap to Chinese inventions and Marco Polo's writings, but Polo (1254-1324) lived well after Neckham wrote. It is still a strong possibility that Italian traders brought back the invention of the magnetic compass.

For the Chinese, it was a magnetized needle floating in a bowl of water and called the "South Pointing Fish." Between 1295 and 1302, Giovanni "Flavio" Gioja (if he existed: there is speculation that a typo gave credit to the wrong person) balanced the magnetized needle on a post over a compass rose and enclosed the whole thing in a box, eliminating the spillable-in-rough-seas bowl of water type.

The Muslim world, often ahead of Western Europe in scientific matters, does not make reference to the magnetic bowl-of-water compass until 1242. Muslims saw value in the device not just for marine navigation but also to determine how to face Mecca for prayer when far away from that city.

The magnetic compass allowed sailors to increase the season of safe navigation beyond the times of clear skies. More trading trips could be made during months that were typically clouded and more risky.

Alexander Neckham did more than observe a compass, however, and we'll look into him more tomorrow, including how he might have inadvertently given rise to the legend of Virgil's magic fly!

*Richard later gave Hodierna a generous pension.

The Astronomer Sultan

The Rasulids were a Sunni Muslim dynasty that ruled what is now Yemen and the Red Sea Coast of the Arabia peninsula from the early 13th century to 1454. Their third sultan, Al-Ashraf Umar II, was only sultan for less than two years, following a 46-year rule by his father, but he used his time as sultan-in-waiting to become highly educated. He understood medicine, mathematics, agriculture, and astronomy.

As an astronomer, he wrote a treatise about astrolabes (a device known to many in the east and the west) and sundials. In it, he describes the making of a qibla compass, designed to determine qibla properly wherever you are—that is, the direction toward Mecca for when you pray—a vitally important point in Islam. Al-Ashraf did not claim in the treatise that he invented it, but it is the earliest mention of a compass for determining qibla found in a medieval Islamic text, so his name is historically linked with its creation.

The qibla compass, of course, is a magnetic compass that points north. That is only the first step, however: once you find north, marks around the dial indicate major cities in which you might find yourself. The position of the city's name on the dial—if that's where you are when it is time to pray—show the compass direction from north that you must face.

Al-Ashraf also wrote one of the earliest known Islamic works on agriculture, a seven-chapter treatise that covers times for planting, cereal crops, seed crops, flowering plants, aromatic plants, vegetables, and even pest control. He lived in what is considered the Islamic Golden Age, and died in 1296.

The qibla compass is used extensively today; now, what about the magnetic compass itself? When was that discovered, and what did the Middle Ages do with it? Let's find out next time.