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Portrait reconstruction of I2298
Ancient Individual

A woman buried in Tanzania in the Middle Ages era

I2298
1319 CE - 1411 CE
Female
Pemba 600 Years Before Present in Tanzania
Tanzania
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Chapter I

Identity

The biological and cultural markers that define this ancient individual

Sample ID

I2298

Date Range

1319 CE - 1411 CE

Biological Sex

Female

mtDNA Haplogroup

L2a1a2

Cultural Period

Pemba 600 Years Before Present in Tanzania

Chapter II

Place

Where this individual was discovered

Country Tanzania
Locality Zanzibar. Pemba Island. Mapangani Cave
Coordinates -4.9000, 39.6000
Chapter III

Time

When this individual lived in the broader context of human history

I2298 1319 CE - 1411 CE
Chapter IV

Story

The narrative of this ancient life

The era of 600 years before the present in Pemba, part of Tanzania's Swahili Coast civilization, represents a fascinating period characterized by vibrant cultural and economic activity. During this time, the island of Pemba, along with its sister island Zanzibar and other coastal areas, was part of the larger Swahili Coast, a series of city-states and settlements that spanned the eastern coast of Africa from Somalia in the north to Mozambique in the south. The region was renowned for its unique cultural synthesis, maritime prowess, and role as a hub in the Indian Ocean trade network.

Maritime Trade and Economy

Around 600 BP (circa 1400 AD), the Swahili civilization was at the height of its prosperity. Pemba, like other regions of the Swahili Coast, was deeply involved in maritime trade facilitated by its strategic location. The island served as a crucial node in the Indian Ocean trade routes, linking Africa with the Arabian Peninsula, Persia, India, and later China. Merchants and sailors navigated the monsoon winds to trade goods such as gold, ivory, slaves, and gemstones from the African interior, as well as locally produced commodities like mangrove poles, coconuts, and spices. In exchange, they imported textiles, pottery, beads, and other luxury items.

Cultural Synthesis and Urban Centers

Pemba, like its coastal counterparts, was characterized by a blend of African, Arab, Persian, and later, Indian influences, reflected in its language, architecture, and social customs. This cultural synthesis gave rise to the Swahili culture, characterized by its distinct language (Kiswahili, a Bantu language enriched with Arabic loanwords), Islamic faith, and unique social structure. The prosperity from trade allowed for the development of urban centers and stone-built settlements, leading to architectural advancements such as the use of coral stone in building mosques, homes, and public buildings.

Society and Social Structure

Society on Pemba during this era was hierarchical but cosmopolitan, with a ruling class of merchant elites known as the Waungwana, whose wealth was derived from trade. Below them were the Waswahili, the general populace involved in various trades and crafts, and the Wahadimu, the indigenous farming communities. Social interactions were significantly influenced by Islamic practices, as Islam had become the dominant religion by this period, introduced by Arab and Persian traders centuries earlier.

Religion and Cultural Practices

Islam played a central role in the daily lives of Pemba's inhabitants, guiding not only spiritual beliefs but also aspects of commerce, law, and social customs. Mosques were prominent features in towns, serving as centers for education and community gatherings. The religious calendar also influenced cultural practices, with festivals such as Eid al-Fitr and Eid al-Adha being significant social events.

Art and Craftsmanship

Cultural expressions flourished during this period, with the Swahili renowned for their artisan skills in weaving, pottery, metalwork, and wood carving. Pemba was no exception, producing intricately designed items for both local use and trade. The art was often infused with both indigenous and foreign motifs, reflecting the island's multicultural influences.

Agriculture and Food

While trade was a cornerstone of Pemba's economy, agriculture also played a vital role. The fertile soil and favorable climate allowed for the cultivation of various crops, including rice, which was a staple food. Cloves and other spices began to be cultivated during this time, although the spice trade would peak in later centuries. Fishing and the gathering of seafood were also essential to the diet.

Challenges and Conflicts

Despite its prosperity, the Swahili Coast, including Pemba, faced challenges. Competition among city-states and external threats from neighboring African kingdoms, as well as occasional conflicts with Arab and Persian traders, were not uncommon. These tensions sometimes led to shifts in power dynamics within and between the coastal settlements.

In conclusion, the period of 600 years before the present in Pemba was marked by a vibrant and dynamic culture deeply interconnected with the broader Indian Ocean world. The island's role as a trade hub facilitated a rich cultural exchange that left a lasting legacy on its social, economic, and cultural development, making it an integral part of the Swahili Coast civilization.

Chapter V

Genetics

The genetic ancestry of this ancient individual

Ancient Genetic Admixture

This analysis compares the DNA profile of I2298 with ancient reference populations, showing the genetic composition in terms of prehistoric ancestral groups.

Ancient Africans 95.2%
Neolithic Farmers 4.8%

Modern Genetic Admixture

This analysis compares the DNA profile with present-day reference populations, showing what percentage of genetic makeup resembles modern populations from different regions.

Africa 97.7%
West African 50.7%
Nigerian 41.5%
Senegambian & Guinean 9.2%
Northern East African 27.2%
Eastern African 27.2%
Congolese & Southern East African 12.7%
South East African 12.7%
African Hunter-Gatherer 7.1%
African Hunter-Gatherer 7.1%
Europe 2.3%
Eastern European 2.3%
Eastern European 2.3%

Closest Modern Populations

These are the modern populations showing the closest statistical alignment to A woman buried in Tanzania in the Middle Ages era, ranked by genetic distance. Lower distance values indicate closer statistical similarity.

1
Bantu S.E.
2.0147
2
Bantu S.W.
5.0714
Chapter VI

Context

Other ancient individuals connected to this sample

Sources

References

Scientific publications and genetic data

Scientific Publication

Reconstructing Prehistoric African Population Structure

Authors Skoglund P, Thompson JC, Prendergast ME
Abstract

We assembled genome-wide data from 16 prehistoric Africans. We show that the anciently divergent lineage that comprises the primary ancestry of the southern African San had a wider distribution in the past, contributing approximately two-thirds of the ancestry of Malawi hunter-gatherers ∼8,100-2,500 years ago and approximately one-third of the ancestry of Tanzanian hunter-gatherers ∼1,400 years ago. We document how the spread of farmers from western Africa involved complete replacement of local hunter-gatherers in some regions, and we track the spread of herders by showing that the population of a ∼3,100-year-old pastoralist from Tanzania contributed ancestry to people from northeastern to southern Africa, including a ∼1,200-year-old southern African pastoralist. The deepest diversifications of African lineages were complex, involving either repeated gene flow among geographically disparate groups or a lineage more deeply diverging than that of the San contributing more to some western African populations than to others. We finally leverage ancient genomes to document episodes of natural selection in southern African populations. PAPERCLIP.

G25 Coordinates

The G25 coordinates for sample I2298 can be used for detailed admixture analysis in our G25 Studio tool.

I2298,-0.62207762,0.06162904,0.0226995,0.0183471,-0.00240656,0.00812426,0.03180914,-0.01628886,-0.01906242,0.01373922,0.00465042,-0.01382932,-0.00797126,0.00051476,-0.0082949,0.00328328,0.00056928,0.04668436,-0.02102502,0.00277876,-0.00159206,-0.00193182,0.0023404,0.00103582,0.00112978
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