The Great Mali Empire, Mansa Musa, and the Saharan Trade by Thomas Kenning

The Great Mali Empire, Mansa Musa, and the Saharan Trade by Thomas Kenning https://padlet.com/tkenning/gq40dh199ni6 To what extent are societies shaped by the goods and ideas that cross their borders? en-us 2016-03-01 03:06:19 UTC 2023-02-21 01:19:10 UTC hello@padlet.com https://padlet-uploads.storage.googleapis.com/71655490/11ccd321d5f1b7ec98e49b1c30fea56dabc6baa9/cf72653fb7e7003f900ff328475aa5f3.jpg tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075778 Common Core History Lesson Plan: CCSS.ELA-LITERACY.RH.6-8.1, CCSS.ELA-LITERACY.RH.6-8.7, CCSS.ELA-LITERACY.RH.6-8.10, CCSS.ELA-LITERACY.RH.9-10.2, CCSS.ELA-LITERACY.RH.9-10.4, CCSS.ELA-LITERACY.RH.11-12.8]]> 2016-02-28 01:54:21 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075778 The Bottom Line tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075779 1. Citing specific examples, describe how the trans-Saharan trade linked Mali to other regions of the world. Likewise, how does trade link your hometown to other regions of the world?

2. According to this article, what sources do modern historians have when studying the Mali Empire? What sources are missing and why? What kind of challenges does this present in creating a picture of the Mali Empire? What kind of questions are we left asking?

3. How does the camel make trans-Saharan trade possible? What animals most define your culture, and in what ways?

4. In what ways is Islam incorporated into West African society under the Mali Empire?

5. Research and report on examples of art from the Mali Empire. Describe its appearance in your own words. What does it demonstrate about the Mali Empire, its people, and its values?

]]> 2016-02-25 20:42:17 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075779 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075780 Open Ended Social Studies exists to produce and share high-quality, thought-provoking lessons with teachers everywhere - free of charge. Every effort has been made to use open-sourced text and media as the basis of these lessons, but if you see something here that belongs to you, please consider our mission - there is no money changing hands here, and we exist to help kids. If you're still concerned about some media that belongs to you, please politely let us know. Thanks. Peace. 2015.]]> 2016-02-28 01:51:06 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075780 Decline of Saharan trade and the fall of the Mali Empire tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075781 There were a number of challenges to Malian hegemony. One came in 1343, when the Mossi, a rival kingdom, attacked Timbuktu. A source says: 'The Mossi sultan entered Timbuktu and sacked and burned it, killing many persons and looting it before returning to his land.' Timbuktu, however, recovered and the Malians continued to rule it for the next hundred years. However: 'The Tuaregs began to raid and cause havoc on all sides. The Malians, bewildered by their many depredations, refused to make a stand against them.' Mali lost control of Timbuktu in 1433.

Portuguese journeys around the West African coast opened up new avenues for trade between Europe and West Africa. By the early 16th century, European trading bases, known as "Factories," established on the coast beginning 1445 came to dominate North African trade. These European trading posts - flush with novel manufactured goods in high demand throughout West Africa - were located closer to sources of gold, salt, and slaves, while the Saharan crossing remained long and treacherous. In short, trading with coast simply made more economic sense, especially as trade routes to the West African coast became increasingly easy, particularly after the French conquest of the 1890s and subsequent construction of railways to the interior.

]]> 2016-02-25 20:36:45 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075781 Economy and education under Mansa Musa tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075782 Mansa Musa brought architects from Moorish Spain and Cairo, Egypt to build his grand palace in Timbuktu and the great Djinguereber Mosque that still stands today.

"Timbuktu is at the northward extension of the Sahel region and also the northernmost part of where the Niger River flows," says Robert Launay, an anthropology professor at Northwestern University. "It was the port of entry through the desert to North Africa. There was trade up the Niger River to Timbuktu and then a caravan trade across the desert."

Timbuktu soon became a center of trade, culture, and Islam; a university was founded in the city (as well as in the Malian cities of Djenné and Ségou), and Islam was spread through the markets and university, making Timbuktu a new area for Islamic scholarship. News of the Malian empire's city of wealth even traveled across the Mediterranean to southern Europe, where traders from Venice, Granada, and Genoa soon added Timbuktu to their maps to trade manufactured goods for gold.

The University of Sankore in Timbuktu was restaffed under Musa's reign with jurists, astronomers, and mathematicians. The university became a center of learning and culture, drawing Muslim scholars from around Africa and the Middle East to Timbuktu.

In 1330, the kingdom of Mossi invaded and conquered the city of Timbuktu. Gao had already been captured by Musa's general, and Musa quickly regained Timbuktu and built a rampart and stone fort, and placed a standing army to protect the city from future invaders.
While Musa's palace has since vanished, the university and mosque still stand in Timbuktu today.

By the end of Mansa Musa's reign, the Sankoré University had been converted into a fully staffed University with the largest collections of books in Africa since the Library of Alexandria . The Sankoré University was capable of housing 25,000 students and had one of the largest libraries in the world with roughly 1,000,000 manuscripts.

]]> 2016-02-25 19:11:16 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075782 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075783 Musa made his Hajj between 1325-1326. His procession reportedly included 60,000 men, including 12,000 slaves who each carried four pounds of gold bars and heralds dressed in silks who bore gold staffs, organized horses, and handled bags. Musa provided all necessities for the procession, feeding the entire company of men and animals. Those animals included 80 camels which each carried between 50 and 300 pounds of gold dust. Musa gave the gold to the poor he met along his route. Musa not only gave to the cities he passed on the way to Mecca, including Cairo and Medina, but also traded gold for souvenirs. It was reported that he built a mosque each and every Friday.

But Musa's generous actions inadvertently devastated the economy of the regions through which he passed. In the cities of Cairo, Medina, and Mecca, the sudden influx of gold devalued the metal for the next decade. Prices on goods and wares greatly inflated. This is the only time recorded in history that one man directly controlled the price of gold in the Mediterranean.

]]> 2016-02-25 17:08:07 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075783 Mansa Musa's Hajj to Mecca tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075784 From the far reaches of the Mediterranean Sea to the Indus River, the faithful approached the city of Mecca. All had the same objective to worship together at the most sacred shrine of Islam, the Kaaba in Mecca. One such traveler was Mansa Musa, Sultan of Mali in Western Africa. Mansa Musa had prepared carefully for the long journey he and his attendants would take. He was determined to travel not only for his own religious fulfillment, but also for recruiting teachers and leaders, so that his realms could learn more of the Prophet's teachings.
–Mahmud Kati, Chronicle of the Seeker

Musa was a devout Muslim, and his pilgrimage to Mecca (known as the Hajj, a duty ordained by Allah, according to Islam) made him well-known across northern Africa and the Middle East. To Musa, Islam was "an entry into the cultured world of the Eastern Mediterranean." He would spend much time fostering the growth of the religion within his empire.

]]> 2016-02-27 19:48:29 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075784 Salt tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075785 The next great unit of exchange in the Mali Empire was salt. Salt was as valuable, if not more valuable than gold in Sub-Saharan Africa. Salt is produced in the Sahara (and has been for over 2½ thousand years-mentioned by Herodotus) at several places. Since ancient times, salt has been used to flavor and preserve food. Salt was either extracted from evaporating pools or mined from underground, left behind from dried up ancient seabeds. It was cut into pieces and spent on goods with close to equal buying power throughout the empire. While it was as good as gold in the north, it was even better in the south. Salt was relatively rare in the south. The northern region on the other hand had no shortage of salt. Every year merchants entered Mali via Oualata with camel loads of salt to sell in Niani. According to Ibn Battuta who visited Mali in the mid-14th century, one camel load of salt sold at the northern trading post of Walata for 8–10 mithkals of gold, but in Mali proper it was worth 20–30 ducats and sometimes even 40. One particular source of salt in the Mali empire were salt-mining sites located in Taghaza. Ibn Battuta wrote that in Taghaza there were no trees and there is only sand and the salt mines. Nobody lived in the area except the Musafa slaves who working to dug the salts and lived on imported dates, camel meat, and millet imported from the Sudan. The buildings were even constructed from slabs of salt and roofed with camel skins. The salt was dug from the ground and cut into thick slabs, two of which were loaded onto each camel where they will be taken south across the desert and sold. ]]> 2016-02-24 20:28:06 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075785 The Sahara Desert tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075786 The Sahara (Arabic: الصحراء الكبرى‎, aṣ-ṣaḥrāʾ al-kubrā , 'the Greatest Desert') is the largest hot desert and third largest desert after Antarctica and the Arctic worldwide. Its surface area is comparable to that of the United States. The desert comprises much of the land found within North Africa. The Sahara stretches from the Red Sea in the east and the Mediterranean in the north, to the Atlantic Ocean in the west, where the landscape gradually transitions to a coastal plain. To the south, it is bordered by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and Sudan Region of Sub-Saharan Africa - which was, from c. 1230 to c. 1600 - the homeland of the Mali Empire.]]> 2016-02-23 18:45:58 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075786 Boatman on the Niger River tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075787 2016-02-25 20:40:30 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075787 Center of learning tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075788 Timbuktu was a world center of Islamic learning from the 13th to the 17th century, especially under the Mali Empire. The Malian government and NGOs have been working to catalog and restore the remnants of this scholarly legacy: Timbuktu's manuscripts.

Knowledge was gathered in a manner similar to the early, informal European Medieval university model. Lecturing was presented through a range of informal institutions called madrasahs. Nowadays known as the University of Timbuktu, three madrasahs facilitated 25,000 students: Djinguereber, Sidi Yahya and Sankore.

These institutions were explicitly religious, as opposed to the more secular curricula of modern European universities and more similar to the medieval Europe model. However, where universities in the European sense started as associations of students and teachers, West-African education was patronized by families or lineages, with the Aqit and Bunu al-Qadi al-Hajj families being two of the most prominent in Timbuktu – these families also facilitated students is set-aside rooms in their housings. Although the basis of Islamic law and its teaching were brought to Timbuktu from North Africa with the spread of Islam, Western African scholarship developed.

Timbuktu served as a distribution center of scholars and scholarship. Its reliance on trade meant intensive movement of scholars between the city and its extensive network of trade partners. Hidden in cellars or buried, secreted between the mosque's mud walls and safeguarded by their patrons, many of these manuscripts survived the city's decline. They now form the collection of several libraries in Timbuktu, holding up to 700,000 manuscripts

Four basic types have survived:

key texts of Islam, including Korans, collections of Hadiths (actions or sayings of the Prophet), Sufi texts and devotional texts
works of the Maliki school of Islamic law
texts representative of the 'Islamic sciences', including grammar, mathematics and astronomy
original works from the region, including contracts, commentaries, historical chronicles, poetry, and marginal notes and jottings, which have proved to be a surprisingly fertile source of historical data.

]]> 2016-02-25 20:27:30 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075788 Timbuktu in the modern day tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075789 2016-02-25 20:24:35 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075789 Djinguereber Mosque, Timbuktu tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075790 2016-02-25 20:22:47 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075790 The ultimate desert technology tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075791 People have been using camels for over 4,000 years mostly as pack animals and for transportation. Camels came to north Africa from Arabia, by way of Egypt and the Sudan, coming into wide spread use by 300 CE, replacing horses and donkeys as the preferred means of transportation across the Sahara. A caravan of camels took 70 to 90 days to cross the Sahara, so the camel’s ability to travel long distances without water made trans-Saharan trade possible. In short, adoption of domesticated camels represented the ultimate in desert technology. ]]> 2016-02-24 17:08:18 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075791 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075792 2016-02-25 20:14:14 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075792 Mansa Musa tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075793 2016-02-25 20:10:39 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075793 The Saharan Trade tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075794 2016-02-25 20:06:47 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075794 The Mali Empire tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075795 2016-02-25 20:03:00 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075795 Slaves tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075796 Islamic Sharia law allowed slavery but prohibited slavery involving other preexisting Muslims; as a result, the main target for slavery were the people who lived in the frontier areas of Islam in Africa, in the Sahara and Sahel. Bernard Lewis writes that "polytheists and idolaters were seen primarily as sources of slaves, to be imported into the Islamic world and molded in Islamic ways, and, since they possessed no religion of their own worth the mention, as natural recruits for Islam."

Large numbers of Africans were sent north, generally to serve as domestic servants or slave concubines. The West African states imported highly trained slave soldiers. It has been estimated that from the 10th to the 19th century some 6,000 to 7,000 slaves were transported north each year.

]]> 2016-02-24 20:37:37 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075796 Mansa Musa, the Great Emperor of Mali tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075797 The rulers of Mali came to be called mansa, meaning “emperor” or “master.” Mansa Musa was Mali’s most renowned king, ruling from 1312 to 1337 CE. He was the grandson of Sundiata’s half brother, and ruled Mali at a time of great prosperity, during which trade tripled. During his rule, he doubled the land area of Mali; it became a larger kingdom than any in Europe at the time. The cities of Mali became important trading centers for all of West Africa as well as famous centers of wealth, culture, and learning. Timbuktu, an important city in Mali, became one of the major cultural centers not only of Africa but of the entire world. Vast libraries and Islamic universities were built. These became meeting places of the finest poets, scholars, and artists of Africa and the Middle East. Mansa Musa, who was Muslim, was perhaps best known outside of Mali for his pilgrimage to Mecca in 1324 C.E. According to some accounts, 60,000 people accompanied him, along with 200 camels laden with gold, silver, food, clothing, and other goods. This pilgrimage displayed Mansa Musa’s enormous wealth and generosity.

Mansa Musa Keita came to the throne through a practice of appointing a deputy when a king goes on his pilgrimage to Mecca or some other endeavor, and later naming the deputy as heir. According to primary sources, Musa was appointed deputy of Abubakari Keita II, the king before him, who had reportedly embarked on an expedition to explore the limits of the Atlantic Ocean, and never returned. The Arab-Egyptian scholar Al-Umari quotes Mansa Musa as follows:

The ruler who preceded me did not believe that it was impossible to reach the extremity of the ocean that encircles the earth (the Atlantic Ocean). He wanted to reach that (end) and was determined to pursue his plan. So he equipped two hundred boats full of men, and many others full of gold, water and provisions sufficient for several years. He ordered the captain not to return until they had reached the other end of the ocean, or until he had exhausted the provisions and water. So they set out on their journey. They were absent for a long period, and, at last just one boat returned. When questioned the captain replied: 'O Prince, we navigated for a long period, until we saw in the midst of the ocean a great river which was flowing massively.. My boat was the last one; others were ahead of me, and they were drowned in the great whirlpool and never came out again. I sailed back to escape this current.' But the Mansa would not believe him. He ordered two thousand boats to be equipped for him and his men, and one thousand more for water and provisions. Then he conferred the regency on me for the term of his absence, and departed with his men, never to return nor to give a sign of life.

]]> 2016-02-25 17:04:13 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075797 Gold tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075798 Gold nuggets were the exclusive property of the mansa (king), and were illegal to trade within his borders. All gold was immediately handed over to the imperial treasury in return for an equal value of gold dust. Gold dust had been weighed and bagged for use at least since the reign of the Ghana Empire. Mali borrowed the practice to stem inflation of the substance, since it was so prominent in the region. The most common measure for gold within the realm was the ambiguous mithqal (4.5 grams of gold). This term was used interchangeably with dinar, though it is unclear if coined currency was used in the empire. Gold dust was used all over the empire, but was not valued equally in all regions.]]> 2016-02-24 20:24:31 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075798 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075799 2016-02-24 20:26:18 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075799 An oral history tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075800 There are a few written accounts of this period, because West African society relied on a tradition of oral history passed down by griots (professional storytellers). Our picture of the Mali Empire comes mainly from the modern continuation of this oral tradition, archaeological research, the extant remains of cities, and the accounts of a few visiting writers.

In addition to royal griots who served the court, most villages also had their own griot, who told tales of births, deaths, marriages, battles, hunts, affairs, and hundreds of other things.

Francis Bebey writes about the griot in his book African Music, A People's Art (Lawrence Hill Books):

"The West African griot is a troubadour, the counterpart of the medieval European minstrel... The griot knows everything that is going on... He is a living archive of the people's traditions... The virtuoso talents of the griots command universal admiration. This virtuosity is the culmination of long years of study and hard work under the tuition of a teacher who is often a father or uncle.

]]> 2016-02-24 19:09:21 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075800 Mali's economy tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075801 With an economy built on the basis of the trans-Saharan trade, the Mali Empire was the largest and longest lasting kingdom in the history of West Africa. It profoundly influenced the culture of the region through the spread of its language, laws and customs along the Niger River, which ran through the heart of the empire. The empire contained three immense gold mines - Bambuk, Boure and Galam within its borders, by some estimates accounting for nearly half the gold supply in Africa, Asia, and Europe from the 12th century on. The empire taxed every ounce of gold, copper and salt that crossed its borders.

]]> 2016-02-24 20:18:09 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075801 Sundiata Keita tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075802 From the British Museum:

Sunjata (r. 1235–1255) was the first king to unify the Mandinka kingdoms and is as much a figure of legend as of fact. Epic songs of the griots tell of the ‘magician’ Sunjata who, when the Mandinka could no longer bear the burden of paying taxes to their Sosso leader Sumanguru, led them into battle. Sunjata killed Sumanguru at the Battle of Krina in 1235, and seized the major territories through which gold was traded. Sunjata declared himself Mansa (King of Kings) of the twelve kingdoms of the Mandinka. The 12 kings swore to obey Sunjata in return for being named governors of their territories. To help him rule, Sunjata set up a Gbara, or Great Assembly, of clan elders who would discuss and make decisions. Over the next two centuries the kingdom would expand through war, until it covered 1.3 million km2 . Sunjata’s successor Ali is credited with conquering the great trading centres of Timbuktu and Djenné.

]]> 2016-02-24 20:15:59 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075802 A griot in modern Mali tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075803 2016-02-24 19:09:34 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075803 The great Mali Empire tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075804 During the 13th and 14th centuries, the great Mali Empire owed its prosperity to its position at the center of a network of caravan trade routes which criss-crossed West Africa, linking sub-Saharan Africa, the Islamic world, and the Mediterranean. The empire was founded in 13th Century by Sundiata Keita, whose exploits remain celebrated in Mali today. ]]> 2016-02-24 19:07:40 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075804 The arrival of Islam tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075805 Merchants transported more than valuable commodities along the trans-Saharan routes. Just as Buddhism reached the Chinese Empire via Indian merchants traveling the Silk Road, Islam reached West Africa through Arab merchants on Saharan caravan routes. Arab merchants brought the Koran and the written language of Arabic to traditionally oral cultures in West Africa. The extensive trade networks throughout North and West Africa created a medium through which Islam spread peacefully, initially through the merchant class. By sharing a common religion and a common language (Arabic), traders showed greater willingness to trust, and therefore invest, in one another.

The British Museum describes the process of conversion in West Africa:

It was Arab traders who first brought the new religion to the kingdom of Mali. Many of them were educated and religious men who through speech and the books of learned writers managed to spread the word. Malians who became traders, and who moved further from their roots, began abandoning their old religion and adopting Islam which proved a passport for entry into northern markets. Traders were followed by Arab immigrants who came as judges, imams and teachers and who settled in the country. They were treated with respect and one Mansa (king) even married his daughters to two of them. Mosques were built, and Islamic influences were felt in architecture, poetry, cooking and even dress. Men were sent to study in Moroccan madrasas (religious schools). Timbuktu became a major centre of Islamic culture and learning. Even so, in the villages much of the old religion remained, and Ibn Battuta was shocked to discover, even at court, old ceremonial dances being performed during an Islamic religious festival.

(https://www.britishmuseum.org/pdf/KingdomOfMali_TeachersNotes.pdf)

]]> 2016-02-24 18:59:04 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075805 Sharing a meal, sharing a culture. tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075806 2016-02-24 19:04:30 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075806 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075807 2016-02-24 19:03:38 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075807 Rock salt at the market in Mopti. It is sold here in slabs, broken and weighed, and packaged into smaller amounts. tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075808 2016-02-24 18:57:03 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075808 Caravan trade tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075809 Camels would be fattened for a number of months on the plains of either the Maghreb or the Sahel before being assembled into a caravan. According to Ibn Battuta, the famous Muslim explorer who accompanied one of the caravans, the average size per caravan was 1,000 camels; some caravans were as large as 12,000. Various Trans-Saharan trade routes connected sub- Saharan West Africa to the Mediterranean coast. Among the commodities carried southward were silk, cotton, horses, and salt. Among those carried northward were gold, ivory, pepper, and slaves.

Caravans would be guided by highly paid Berbers who knew the desert and could ensure safe passage from their fellow desert nomads. The survival of a caravan was precarious and would rely on careful coordination and knowledge of the land. Runners would be sent ahead to oases so that water could be shipped out to the caravan when it was still several days away, as the caravans could not easily carry enough with them to make the full journey.

Mediterranean economies were short of gold but could supply salt, whereas West African countries like Wangara had plenty of gold but needed salt. The trans-Saharan slave trade was also important because large numbers of Africans were sent north, generally to serve as domestic servants or slave concubines. The West African states imported highly trained slave soldiers. It has been estimated that from the 10th to the 19th century some 6,000 to 7,000 slaves were transported north each year. Perhaps as many as nine million slaves were exported along the trans-Saharan caravan route

]]> 2016-02-24 18:44:59 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075809 A Berber caravan in the western Sahara tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075811 2016-02-24 18:40:24 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075811 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075812 When the camel exhales, water vapor becomes trapped in their nostrils and is reabsorbed into the body as a means to conserve water. Camels eating green herbage can ingest sufficient moisture in milder conditions to maintain their bodies' hydrated state without the need for drinking.

Camels do not directly store water in their humps as was once commonly believed. The humps are actually reservoirs of fatty tissue: concentrating body fat in their humps minimizes the insulating effect fat would have if distributed over the rest of their bodies, helping camels survive in hot climates. When this tissue is metabolized, it yields more than one gram of water for every gram of fat processed.

]]> 2016-02-24 17:02:44 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075812 The camel tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075813 Although they rarely traveled faster than the walking speed of a man, camels' ability to withstand harsh conditions made them ideal for communication and trade in the desert areas of North Africa and the Arabian Peninsula for centuries, though they could only travel on routes with sufficient sources of food and water. The animals transformed the economy and culture of the Sahara.

Camels have a series of physiological adaptations that allow them to withstand long periods of time without any external source of water. Unlike other mammals, their red blood cells are oval rather than circular in shape. This facilitates the flow of red blood cells during dehydration and makes them better at withstanding high osmotic variation without rupturing when drinking large amounts of water: a 1,300 lb camel can drink 53 gallons of water in three minutes.]]> 2016-02-24 15:12:30 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075813 Camels fattening before the caravan tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075814 2016-02-24 18:40:57 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075814 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075815 Camels are able to withstand changes in body temperature and water consumption that would kill most other animals. Their body temperature ranges from 93 °F at dawn and steadily increases to 104 °F by sunset, before they cool off at night again. Maintaining the brain temperature within certain limits is critical for animals; to assist this, camels have a rete mirabile, a complex of arteries and veins lying very close to each other which utilizes countercurrent blood flow to cool blood flowing to the brain. Camels rarely sweat, even when ambient temperatures reach 120 °F.

Camels' mouths have a thick leathery lining, allowing them to chew thorny desert plants. Long eyelashes and ear hairs, together with nostrils that can close, form a barrier against sand. If sand gets lodged in their eyes, they can dislodge it using their transparent third eyelid. The camels' gait and widened feet help them move without sinking into the sand. The kidneys and intestines of a camel are very efficient at reabsorbing water. Camel urine comes out as a thick syrup, and camel feces are so dry that they do not require drying when the Bedouins use them to fuel fires.

]]> 2016-02-24 16:59:36 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075815 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075816 2016-02-24 15:11:22 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075816 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075817 As a desert, Sahara is now a hostile expanse that separates the Mediterranean economy from the economy of the Niger basin. Crossing such a zone (especially without mechanized transport like a train or truck) is worthwhile only when exceptional circumstances cause the expected gain to outweigh the cost and danger. The Sahara has always been home to groups of people practicing trade on a regular, if only local basis.]]> 2016-02-24 15:06:13 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075817 tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075818 2016-02-24 15:07:34 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075818 Increasing desertification and economic incentive tkenning https://padlet.com/tkenning/gq40dh199ni6/wish/98075819 The Sahara once had a very different environment. In Libya and Algeria, from at least 7000 BC, there was pastoralism, herding of sheep and goats, large settlements and pottery. Cattle were introduced to the Central Sahara (Ahaggar) from 4000 to 3500 BC. Remarkable rock paintings (dated 3500 to 2500 BC), in places which are currently very dry, portray vegetation and animal presence rather different from modern expectations.

]]> 2016-02-23 18:50:31 UTC https://padlet.com/tkenning/gq40dh199ni6/wish/98075819