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Portrait reconstruction of SN-25
Ancient Individual

A man buried in USA in the Pre-Columbian North America era

SN-25
2570 BCE - 2297 BCE
Male
Early San Nicolas Island, California, USA
USA
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Chapter I

Identity

The biological and cultural markers that define this ancient individual

Sample ID

SN-25

Date Range

2570 BCE - 2297 BCE

Biological Sex

Male

mtDNA Haplogroup

A2c

Y-DNA Haplogroup

Q-L53

Cultural Period

Early San Nicolas Island, California, USA

Chapter II

Place

Where this individual was discovered

Country USA
Locality California. San Nicolas Island
Chapter III

Time

When this individual lived in the broader context of human history

SN-25 2570 BCE - 2297 BCE
Chapter IV

Story

The narrative of this ancient life

Early San Nicolas Island, part of the Channel Islands archipelago off the coast of Southern California, was home to unique indigenous cultures that adapted to the island's challenging environment. The island, approximately 61 square kilometers in size, was inhabited by Native American people long before European contact. These early inhabitants are believed to be the ancestors of the Nicoleño people, who developed a distinct culture influenced by the island's ecology and geography.

Environment and Ecology

San Nicolas Island is characterized by its rugged terrain, steep cliffs, and limited freshwater sources. The island's climate is semi-arid, with low rainfall and high winds, thus presenting a challenging environment for human habitation. Despite these harsh conditions, the island was rich in marine resources, as it is surrounded by nutrient-rich waters supporting a diverse marine ecosystem. The Nicoleño exploited these resources, relying heavily on fishing, shellfish gathering, and hunting sea mammals like seals and sea lions.

Subsistence and Economy

The economy of the Early San Nicolas Island culture was primarily centered around the sea. The inhabitants practiced a subsistence strategy that included fishing, gathering shellfish, and hunting sea mammals, which were abundant around the island. Archaeological evidence, including fishhooks and harpoons crafted from bone and shell, suggests advanced maritime skills. Diets were supplemented by gathering terrestrial plants, seeds, and roots, although the limited flora meant that marine resources were key to survival.

Material Culture

Artifacts from Early San Nicolas Island reveal a rich material culture based on available resources. Tools and utensils were crafted from bone, shell, and stone, with intricate craftsmanship evident in items like fishhooks, beads, and decorative items. The Nicoleño are known for creating finely woven baskets, a skill shared with other Channel Islands tribes, although their styles and techniques had distinct local variations.

Social Structure and Rituals

While specific details about the social structure of the Early San Nicolas Island inhabitants are limited, it is likely that their society was organized around kinship and clan-based systems typical of the region. Ceremonial and ritual practices were likely an important component of social life, as suggested by the presence of ceremonial sites and burial mounds. These sites indicate a belief system that venerated ancestors and natural elements, which is consistent with broader patterns seen among Southern California indigenous cultures.

Interaction with Other Tribes

Although geographically isolated, the Nicoleño people of San Nicolas Island maintained contact with other Channel Islands tribes and mainland groups. Evidence of trade can be found in the presence of artifacts such as steatite (soapstone) items that are not native to the island, suggesting exchange networks. These interactions likely facilitated cultural exchange and technological innovations.

Decline and Legacy

The population on San Nicolas Island began to decline significantly in the early 19th century, exacerbated by European contact, which introduced diseases and disrupted traditional lifeways. The Nicoleño were eventually removed from the island in the 1830s, and the culture essentially disappeared. However, the famous story of Juana Maria, the \Lone Woman of San Nicolas Island," who lived in isolation after being left behind, underscores the enduring human spirit and adaptability of the Nicoleño. Her story became the basis for Scott O'Dell's novel "Island of the Blue Dolphins," which keeps the memory of the island's indigenous heritage alive.

Today, San Nicolas Island is mostly a military-owned site, yet archaeological efforts continue to uncover the island's rich prehistoric past, providing insights into the resilience and adaptability of its early inhabitants. The legacy of the Nicoleño contributes to the broader understanding of California's indigenous cultures, highlighting their deep connection to and sustainable use of environmental resources."

Chapter V

Genetics

The genetic ancestry of this ancient individual

Ancient Genetic Admixture

This analysis compares the DNA profile of SN-25 with ancient reference populations, showing the genetic composition in terms of prehistoric ancestral groups.

Ancient Native Americans 63.5%
Ancient Asians 32.3%
Western Steppe Pastoralists 4.3%

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.

America 88.5%
America 88.5%
Native American 88.5%
Asia 11.5%
Chinese & Southeast Asian 11.5%
Chinese 8.6%
Indonesian Khmer Thai Myanma 2.8%

Closest Modern Populations

These are the modern populations showing the closest statistical alignment to A man buried in USA in the Pre-Columbian North America era, ranked by genetic distance. Lower distance values indicate closer statistical similarity.

1
Mayan
2.3868
2
Cachi
2.4315
3
Mixe
2.6013
4
Bolivian Lapaz
2.8184
5
Huichol
2.9062
6
Zapotec
3.0041
7
Colla
3.0152
8
Pima
3.0303
9
Mixtec
3.1546
10
Nahua
3.2054
Chapter VI

Context

Other ancient individuals connected to this sample

Sources

References

Scientific publications and genetic data

Scientific Publication

Ancient human parallel lineages within North America contributed to a coastal expansion

Authors Scheib CL, Li H, Desai T
Abstract

Little is known regarding the first people to enter the Americas and their genetic legacy. Genomic analysis of the oldest human remains from the Americas showed a direct relationship between a Clovis-related ancestral population and all modern Central and South Americans as well as a deep split separating them from North Americans in Canada. We present 91 ancient human genomes from California and Southwestern Ontario and demonstrate the existence of two distinct ancestries in North America, which possibly split south of the ice sheets. A contribution from both of these ancestral populations is found in all modern Central and South Americans. The proportions of these two ancestries in ancient and modern populations are consistent with a coastal dispersal and multiple admixture events.

G25 Coordinates

The G25 coordinates for sample SN-25 can be used for detailed admixture analysis in our G25 Studio tool.

SN-25,0.0588208,-0.30692626,0.11304692,0.09704088,-0.11300932,-0.01218106,-0.28472804,-0.3340799,-0.01299786,-0.01599856,0.00360116,-0.00086764,-0.0010728,0.024683,-0.00543092,-0.00030764,0.00596786,0.0029352,0.00067524,-0.00201348,-0.00020214,0.0075647,-0.0014373,-0.00508762,-0.00548095
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